Ramya completed
•Download as PPTX, PDF•
0 likes•389 views
The document discusses the key structures and functions of the human eye. It describes the cornea as a thin protective covering of epithelial cells that protects the eye. It notes that the lens is a transparent, curved structure that focuses light rays onto the retina using refraction. It also explains that the retina is a layer of sensory neurons, including photoreceptors, that respond to light and pass visual impulses to the brain.
Report
Share
Report
Share
Recommended
Introduction to Ophthalmology
This document provides an introduction to ophthalmology and the anatomy and physiology of the eye. It discusses the following key points:
- Ophthalmology is the branch of medicine concerned with the eyes and their diseases and injuries. It involves medical and surgical care of the eyes.
- The eye has three coats - fibrous, vascular and nervous. It also contains structures such as the cornea, iris, lens, vitreous body and retina which help facilitate vision.
- The retina converts light into nerve impulses which are transmitted through the optic nerve and visual pathway to the brain to form an image.
- Ophthalmology has several subspecialties focused on different parts of the eye and
Evidencias
Este documento presenta el portafolio de evidencias de Andrés Gustavo Contreras Antonio, un estudiante de ingeniería informática del grupo 7°A. El portafolio incluye una evaluación diagnóstica, un mapa conceptual de los aspectos más importantes de la consultoría, detalles de una actividad realizada en clase y los resultados de un examen de la Unidad 1.
Agrobiogen 2 2_2006_74-80
Teks tersebut merupakan ringkasan penelitian tentang induksi kalus dan regenerasi empat varietas padi yaitu Ciherang, Cisadane, IR64, dan T-309 melalui kultur in vitro. Penelitian ini bertujuan untuk mendapatkan formulasi media yang tepat untuk induksi kalus dan regenerasi tanaman. Hasilnya menunjukkan bahwa media MS + 2,4-D 2 mg/l + casein hidrolisat 3 mg/l merupakan media terbaik untuk induksi kalus, sed
London-Paris 2014 Microsoft/UKYouth Cycling Challenge
In 2013, I had a thought... and from a simple thought, I devised a plan. During my 14-month placement at Microsoft, I took on a 3 day challenge to cycle 330 miles from London to Paris. However, instead of doing it on my own and with no purpose, I wanted to take it one step further. Therefore, I decided to assemble a team of 4 enthusiasts and give our ride a purpose - to raise £14,000 for the UK Youth Charity.
A simple idea suddenly transformed into an 8 month project - a cycling challenge that consisted of countless training miles, numerous fundraising and promotion activities, 200+ supporters and sponsors, senior leadership buy-in and one big accomplishment - £15,000 raised and 330 miles conquered in 3 days in sweat, tears, mud and with no injury.
L2P2014 team: Sarah Lidington, James Griffin, George Moore & Natalia Dobias
Essays logo Igor Rafailov
This document tests different logo designs for "IGOR RAFAI love" by displaying 7 versions with slight variations and asks the recipient to provide feedback on which design is most attractive. It was sent by Igor Rafailov who can be contacted via email or WhatsApp for more information.
Punya devi
The document discusses the historical discovery of the internal structure of the atom. It notes that protons and neutrons have similar mass while electrons are much lighter, and that protons and electrons have equal but opposite charges while neutrons have no charge. The text then provides an example of analyzing the composition of a neutral boron-10 atom in terms of its protons, neutrons, and electrons. Finally, it states that chemical reactions involve electron transfer or sharing between atoms, so an element's chemical properties depend on the number of electrons in its atoms.
Sparta Maximum Remix XKE
The document lists the names of various electronic music creations and bases. It includes creations from artists like Jario943, Sonicknockoff, KingspartaX37, G0ATFAC3, and others. Genres mentioned include trance, electro, medieval, and many versions of bases like Madhouse, Skyboom, Throwback, and Boss.
Motivational quotations
This document was compiled by Sarwan Singh and provides contact information for his corporate training, education, mentoring, and coaching services. It lists his email, websites, social media profiles, phone numbers, and cities of Ahmedabad and Baroda where he can be reached. The document encourages contacting Sarwan Singh for assistance.
Recommended
Introduction to Ophthalmology
This document provides an introduction to ophthalmology and the anatomy and physiology of the eye. It discusses the following key points:
- Ophthalmology is the branch of medicine concerned with the eyes and their diseases and injuries. It involves medical and surgical care of the eyes.
- The eye has three coats - fibrous, vascular and nervous. It also contains structures such as the cornea, iris, lens, vitreous body and retina which help facilitate vision.
- The retina converts light into nerve impulses which are transmitted through the optic nerve and visual pathway to the brain to form an image.
- Ophthalmology has several subspecialties focused on different parts of the eye and
Evidencias
Este documento presenta el portafolio de evidencias de Andrés Gustavo Contreras Antonio, un estudiante de ingeniería informática del grupo 7°A. El portafolio incluye una evaluación diagnóstica, un mapa conceptual de los aspectos más importantes de la consultoría, detalles de una actividad realizada en clase y los resultados de un examen de la Unidad 1.
Agrobiogen 2 2_2006_74-80
Teks tersebut merupakan ringkasan penelitian tentang induksi kalus dan regenerasi empat varietas padi yaitu Ciherang, Cisadane, IR64, dan T-309 melalui kultur in vitro. Penelitian ini bertujuan untuk mendapatkan formulasi media yang tepat untuk induksi kalus dan regenerasi tanaman. Hasilnya menunjukkan bahwa media MS + 2,4-D 2 mg/l + casein hidrolisat 3 mg/l merupakan media terbaik untuk induksi kalus, sed
London-Paris 2014 Microsoft/UKYouth Cycling Challenge
In 2013, I had a thought... and from a simple thought, I devised a plan. During my 14-month placement at Microsoft, I took on a 3 day challenge to cycle 330 miles from London to Paris. However, instead of doing it on my own and with no purpose, I wanted to take it one step further. Therefore, I decided to assemble a team of 4 enthusiasts and give our ride a purpose - to raise £14,000 for the UK Youth Charity.
A simple idea suddenly transformed into an 8 month project - a cycling challenge that consisted of countless training miles, numerous fundraising and promotion activities, 200+ supporters and sponsors, senior leadership buy-in and one big accomplishment - £15,000 raised and 330 miles conquered in 3 days in sweat, tears, mud and with no injury.
L2P2014 team: Sarah Lidington, James Griffin, George Moore & Natalia Dobias
Essays logo Igor Rafailov
This document tests different logo designs for "IGOR RAFAI love" by displaying 7 versions with slight variations and asks the recipient to provide feedback on which design is most attractive. It was sent by Igor Rafailov who can be contacted via email or WhatsApp for more information.
Punya devi
The document discusses the historical discovery of the internal structure of the atom. It notes that protons and neutrons have similar mass while electrons are much lighter, and that protons and electrons have equal but opposite charges while neutrons have no charge. The text then provides an example of analyzing the composition of a neutral boron-10 atom in terms of its protons, neutrons, and electrons. Finally, it states that chemical reactions involve electron transfer or sharing between atoms, so an element's chemical properties depend on the number of electrons in its atoms.
Sparta Maximum Remix XKE
The document lists the names of various electronic music creations and bases. It includes creations from artists like Jario943, Sonicknockoff, KingspartaX37, G0ATFAC3, and others. Genres mentioned include trance, electro, medieval, and many versions of bases like Madhouse, Skyboom, Throwback, and Boss.
Motivational quotations
This document was compiled by Sarwan Singh and provides contact information for his corporate training, education, mentoring, and coaching services. It lists his email, websites, social media profiles, phone numbers, and cities of Ahmedabad and Baroda where he can be reached. The document encourages contacting Sarwan Singh for assistance.
Be Barefoot - Live your Dream
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive function. Exercise causes chemical changes in the brain that may help protect against mental illness and improve symptoms.
presentation title
The Planet Express Ship is the delivery ship owned by Planet Express in Futurama. It was designed and built by Professor Farnsworth. The ship is piloted by Captain Turanga Leela and also carries crew members Philip J. Fry and Bender. The ship has several weapons and can travel faster than light. It has undergone some modifications over the course of the show but generally maintains the same teardrop design.
Web tek labs profile v2.3
WebTek Labs creates high-impact solutions to help clients achieve their business goals through a comprehensive suite of services including testing, staffing, training, application management, and consulting. With over 10 years of experience, WebTek Labs believes success can be achieved through a classic scientific approach optimized with innovative methods in service marketing, technology, communication, and management.
How to Join Conversations About Your Brand, presented by Jason Duty
PRESENTED BY: Jason Duty, Director of Global Social Outreach Services at Dell
RECORDED AT: WordofMouth.org's Crash Course conference in Austin, TX on May 10, 2012
Radiant Beautiful Healthy Skin
Be a Barefoot Beauty discover natural healthy skin from Shaklee the #1 Natural Nutrition Company. Enfuselle stands for feed the skin. To hear this presentation live contact; Cindy McAsey - 888-272-6701
Car insurance in spartanburg
This document provides contact information for an insurance agent located in Spartanburg, South Carolina. It lists the agency name as Watson Agency and provides their website and phone number for potential customers to call or visit for more information. The document ends with a thank you message.
Facebook 2015 Mistakes to Avoid
Facebook 2015 Mistakes to Avoid document provides 6 tips to avoid common mistakes on Facebook in 2015. The tips include varying post types to keep audiences engaged, promptly responding to comments and questions, filtering existing customers from advertising, avoiding overexposure of ads, integrating Facebook with other marketing channels, and continuing to use Facebook despite changes.
My carnaval vacation
I went on a vacation to Disney World and Universal Studios in Orlando, where I tried the popular drink Butterbeer and enjoyed it, then went shopping at the nearby Premium Outlets mall.
1. codes & conventions
The document discusses continuity of time setting through props and costumes in film opening sequences, such as using sepia tones for Gladiator to indicate a historical setting. It also analyzes the author's own opening sequence for a film called "Repressed Memories," noting the use of techniques like jump cuts, cross dissolves, and old English font to establish the 16th century time period, while acknowledging some elements may not show full continuity. Examples from other films like Gladiator and Troy are provided.
LandReformsekta
Landlessness is the main cause of rural poverty in India, where over 70% of the population lives in rural areas. Those with land tend to have greater economic stability and bargaining power. Landlessness brings obstacles like inability to get loans or insurance, and an inability to profit from labor. Effective land reform legislation that redistributes land equitably among the rural masses is needed to remedy this issue. However, existing land reform laws in India have gaps and inconsistencies and need reform. Additionally, a more comprehensive legal framework is required to support vulnerable groups and ensure their land rights. The National Council for Land Reforms was formed to address unfinished land reforms, but it has yet to hold its first meeting to discuss critical land reform issues.
SENSORY ORGAN: EYES// EYE STRUCTURE// EYE BALL
SENSE ORANS ARE THE SPECIALIZED ORGANS COMPOSED OF NEURONS , WHICH HELPS US TO PERCEIVE AND RESPOND TO OUR SURROUNDINGS .
THERE ARE FIVE SENSE ORGANS –
EYES : SENSE OF SEEING
EARS : SENSE OF HEARING
NOSE :SENSE OF SMELL
TONGUE : SENSE OF TASTE
SKIN : SENSE OF TOUCH, PAIN etc.
THE HUMAN EYES ARE SENSE ORGAN ADAPTED TO ALLOW US VISION BY REACTING TO LIGHT .
OUR PAIRED EYES ARE LOCATED IN SOCKETS OF THE SKULL CALLED ORBITS .
3 d lesson framework human eye_combined-1
The human eye is a spherical structure located in the eye socket. It contains six muscles that control eye movement and vision - four rectus muscles and two oblique muscles. The main layers of the eye are the sclera, choroid, and retina. The ciliary body contains the ciliary muscle and ciliary processes that help produce aqueous humor. Vitreous humor is a clear gel that fills the space behind the lens. Light enters through the cornea and passes through the iris and pupil, which control the amount of light entering. The lens focuses light onto the retina, and the optic nerve transfers this visual information to the brain.
Presentation 2
This document summarizes the key structures and functions of the eye and ear. It describes the main parts of the eye, including the sclera, choroid, retina, eyelids, muscles and lacrimal apparatus. It explains how the eye controls light entry and focuses light onto the retina. It also outlines the major components of the ear like the external ear, middle ear and inner ear, noting the role of the semicircular canals in balance and the cochlea in sound detection.
VISION.pdf
The document summarizes the structure and function of the human eye. It describes the three layers that make up the eyeball - fibrous, vascular and nervous layers. The fibrous layer includes the sclera and cornea. The vascular layer includes the choroid, ciliary body and iris. The nervous layer is the retina. It also explains key parts of the eye like the iris, lens, vitreous humor and aqueous humor. The retina contains photoreceptors that convert light to neural signals sent to the brain via the optic nerve. The visual pathway and common refractive errors are also summarized.
Cornea
The document discusses the cornea, which is the transparent outer layer of the eye. It has five layers, with the stroma making up 90% of the corneal thickness and containing collagen that gives the cornea its structure and elasticity. The cornea focuses light onto the retina and acts as a protective barrier for the eye. One disease that can affect the cornea is keratoconus, where the cornea thins and bulges into a cone shape, causing vision problems. Keratoconus can be managed through contact lenses, collagen cross-linking treatment, corneal grafting, or corneal ring implants.
structure and fuction of eyes and ears,types of memory,sharpe memory,attention
The document discusses the structure and function of the eye and ear and their importance in daily life. It provides detailed descriptions of the main parts of the eye including the cornea, iris, lens, retina, etc. and explains their functions. It also discusses the main parts of the ear like the outer, middle and inner ear and how they work together to detect and transmit sound to the brain. Finally, it outlines several important uses of vision and hearing in daily life like communication, enjoyment, safety and more and emphasizes the importance of managing hearing loss.
Eye presentation1
The human eye functions similar to a camera, using a lens to focus light onto the retina. Light passes through the cornea and pupil, and the iris controls the size of the pupil to regulate the amount of light. The retina contains light-sensitive cells that transmit visual signals via the optic nerve to the brain. Common structures inside the eye include the sclera, cornea, iris, lens, vitreous humor, and retina, each playing a role in transmitting and focusing light to produce clear vision.
VISION IN ANIMALS VETERINARY PHYSIOLOGY.pdf
This document provides an overview of canine vision anatomy and physiology. It describes the key structures of the eye, including the retina, iris, lens, cornea, and optic nerve. It explains how light enters the eye and is detected by photoreceptors in the retina. The visual signals are then transmitted through the retina and optic nerve to the brain for processing. Features like the pupil, lens curvature, and presence of the fovea centralis in some species enhance vision. The document also discusses conditions like Horner's syndrome that can affect the eye's function.
Lv book (1).pdf
The document provides information about the anatomy and physiology of the eye. It describes the key structures of the eye including the eyelids, conjunctiva, cornea, iris, crystalline lens, vitreous, retina, optic nerve, and extraocular muscles. It explains the functions of these structures and how together they allow for vision. The tear film and its three layers that protect and nourish the eye are also discussed. The document provides a detailed yet easy to understand overview of the anatomy and physiology of the eye.
SHAHID KHAN AZMI.organ of vision and pathway of vision.ppt
The eye is the main organ of vision. Light enters through the cornea and pupil and is focused by the lens onto the retina. The retina converts the light into neural signals which are transmitted through the optic nerve to the visual cortex of the brain, where an image is formed. The eye contains several parts including the iris, ciliary body, retina, sclera, choroid and optic nerve. Nutrients like vitamins A, C, lutein and zeaxanthin obtained from foods help support eye health and protect against vision problems.
The human eye
The human eye is an organ that reacts to light in many circumstances. As a conscious sense organ the human eye allows vision; rod and cone cells in the retina allow conscious light perception and vision, including color differentiation and the perception of depth. The human eye can distinguish about 10 million colors.
Anatomy of Eye by radhika kulvi, M.Sc nursing
The eye is a paired organ, the organ of vision. The eye is made up of various components, which enable it to receive light stimuli from the environment, and deliver this stimuli to the brain in the form of an electrical signal. Vision involves all components of the eye.
DEFINITION:The human eye is a sensory organ,that reacts to visible light and allow to use visual information for various purposes including seeing things,keeping our balance and circadian rhythm.
STRUCTURE
The eye is contained within the bony orbit of the head. The bony orbit is a cavity, comprising parts of the lacrimal bone (includes fossa for nasolacrimal duct) and the maxilla (includes caudal foramen of infraorbital canal). It is continuous with the temporal bone and the pterygopalatine fossa caudally. It is situated in the orbital cavity and is supplied by 2nd cranial nerve.
More Related Content
Viewers also liked
Be Barefoot - Live your Dream
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive function. Exercise causes chemical changes in the brain that may help protect against mental illness and improve symptoms.
presentation title
The Planet Express Ship is the delivery ship owned by Planet Express in Futurama. It was designed and built by Professor Farnsworth. The ship is piloted by Captain Turanga Leela and also carries crew members Philip J. Fry and Bender. The ship has several weapons and can travel faster than light. It has undergone some modifications over the course of the show but generally maintains the same teardrop design.
Web tek labs profile v2.3
WebTek Labs creates high-impact solutions to help clients achieve their business goals through a comprehensive suite of services including testing, staffing, training, application management, and consulting. With over 10 years of experience, WebTek Labs believes success can be achieved through a classic scientific approach optimized with innovative methods in service marketing, technology, communication, and management.
How to Join Conversations About Your Brand, presented by Jason Duty
PRESENTED BY: Jason Duty, Director of Global Social Outreach Services at Dell
RECORDED AT: WordofMouth.org's Crash Course conference in Austin, TX on May 10, 2012
Radiant Beautiful Healthy Skin
Be a Barefoot Beauty discover natural healthy skin from Shaklee the #1 Natural Nutrition Company. Enfuselle stands for feed the skin. To hear this presentation live contact; Cindy McAsey - 888-272-6701
Car insurance in spartanburg
This document provides contact information for an insurance agent located in Spartanburg, South Carolina. It lists the agency name as Watson Agency and provides their website and phone number for potential customers to call or visit for more information. The document ends with a thank you message.
Facebook 2015 Mistakes to Avoid
Facebook 2015 Mistakes to Avoid document provides 6 tips to avoid common mistakes on Facebook in 2015. The tips include varying post types to keep audiences engaged, promptly responding to comments and questions, filtering existing customers from advertising, avoiding overexposure of ads, integrating Facebook with other marketing channels, and continuing to use Facebook despite changes.
My carnaval vacation
I went on a vacation to Disney World and Universal Studios in Orlando, where I tried the popular drink Butterbeer and enjoyed it, then went shopping at the nearby Premium Outlets mall.
1. codes & conventions
The document discusses continuity of time setting through props and costumes in film opening sequences, such as using sepia tones for Gladiator to indicate a historical setting. It also analyzes the author's own opening sequence for a film called "Repressed Memories," noting the use of techniques like jump cuts, cross dissolves, and old English font to establish the 16th century time period, while acknowledging some elements may not show full continuity. Examples from other films like Gladiator and Troy are provided.
LandReformsekta
Landlessness is the main cause of rural poverty in India, where over 70% of the population lives in rural areas. Those with land tend to have greater economic stability and bargaining power. Landlessness brings obstacles like inability to get loans or insurance, and an inability to profit from labor. Effective land reform legislation that redistributes land equitably among the rural masses is needed to remedy this issue. However, existing land reform laws in India have gaps and inconsistencies and need reform. Additionally, a more comprehensive legal framework is required to support vulnerable groups and ensure their land rights. The National Council for Land Reforms was formed to address unfinished land reforms, but it has yet to hold its first meeting to discuss critical land reform issues.
Viewers also liked (10)
How to Join Conversations About Your Brand, presented by Jason Duty
How to Join Conversations About Your Brand, presented by Jason Duty
Similar to Ramya completed
SENSORY ORGAN: EYES// EYE STRUCTURE// EYE BALL
SENSE ORANS ARE THE SPECIALIZED ORGANS COMPOSED OF NEURONS , WHICH HELPS US TO PERCEIVE AND RESPOND TO OUR SURROUNDINGS .
THERE ARE FIVE SENSE ORGANS –
EYES : SENSE OF SEEING
EARS : SENSE OF HEARING
NOSE :SENSE OF SMELL
TONGUE : SENSE OF TASTE
SKIN : SENSE OF TOUCH, PAIN etc.
THE HUMAN EYES ARE SENSE ORGAN ADAPTED TO ALLOW US VISION BY REACTING TO LIGHT .
OUR PAIRED EYES ARE LOCATED IN SOCKETS OF THE SKULL CALLED ORBITS .
3 d lesson framework human eye_combined-1
The human eye is a spherical structure located in the eye socket. It contains six muscles that control eye movement and vision - four rectus muscles and two oblique muscles. The main layers of the eye are the sclera, choroid, and retina. The ciliary body contains the ciliary muscle and ciliary processes that help produce aqueous humor. Vitreous humor is a clear gel that fills the space behind the lens. Light enters through the cornea and passes through the iris and pupil, which control the amount of light entering. The lens focuses light onto the retina, and the optic nerve transfers this visual information to the brain.
Presentation 2
This document summarizes the key structures and functions of the eye and ear. It describes the main parts of the eye, including the sclera, choroid, retina, eyelids, muscles and lacrimal apparatus. It explains how the eye controls light entry and focuses light onto the retina. It also outlines the major components of the ear like the external ear, middle ear and inner ear, noting the role of the semicircular canals in balance and the cochlea in sound detection.
VISION.pdf
The document summarizes the structure and function of the human eye. It describes the three layers that make up the eyeball - fibrous, vascular and nervous layers. The fibrous layer includes the sclera and cornea. The vascular layer includes the choroid, ciliary body and iris. The nervous layer is the retina. It also explains key parts of the eye like the iris, lens, vitreous humor and aqueous humor. The retina contains photoreceptors that convert light to neural signals sent to the brain via the optic nerve. The visual pathway and common refractive errors are also summarized.
Cornea
The document discusses the cornea, which is the transparent outer layer of the eye. It has five layers, with the stroma making up 90% of the corneal thickness and containing collagen that gives the cornea its structure and elasticity. The cornea focuses light onto the retina and acts as a protective barrier for the eye. One disease that can affect the cornea is keratoconus, where the cornea thins and bulges into a cone shape, causing vision problems. Keratoconus can be managed through contact lenses, collagen cross-linking treatment, corneal grafting, or corneal ring implants.
structure and fuction of eyes and ears,types of memory,sharpe memory,attention
The document discusses the structure and function of the eye and ear and their importance in daily life. It provides detailed descriptions of the main parts of the eye including the cornea, iris, lens, retina, etc. and explains their functions. It also discusses the main parts of the ear like the outer, middle and inner ear and how they work together to detect and transmit sound to the brain. Finally, it outlines several important uses of vision and hearing in daily life like communication, enjoyment, safety and more and emphasizes the importance of managing hearing loss.
Eye presentation1
The human eye functions similar to a camera, using a lens to focus light onto the retina. Light passes through the cornea and pupil, and the iris controls the size of the pupil to regulate the amount of light. The retina contains light-sensitive cells that transmit visual signals via the optic nerve to the brain. Common structures inside the eye include the sclera, cornea, iris, lens, vitreous humor, and retina, each playing a role in transmitting and focusing light to produce clear vision.
VISION IN ANIMALS VETERINARY PHYSIOLOGY.pdf
This document provides an overview of canine vision anatomy and physiology. It describes the key structures of the eye, including the retina, iris, lens, cornea, and optic nerve. It explains how light enters the eye and is detected by photoreceptors in the retina. The visual signals are then transmitted through the retina and optic nerve to the brain for processing. Features like the pupil, lens curvature, and presence of the fovea centralis in some species enhance vision. The document also discusses conditions like Horner's syndrome that can affect the eye's function.
Lv book (1).pdf
The document provides information about the anatomy and physiology of the eye. It describes the key structures of the eye including the eyelids, conjunctiva, cornea, iris, crystalline lens, vitreous, retina, optic nerve, and extraocular muscles. It explains the functions of these structures and how together they allow for vision. The tear film and its three layers that protect and nourish the eye are also discussed. The document provides a detailed yet easy to understand overview of the anatomy and physiology of the eye.
SHAHID KHAN AZMI.organ of vision and pathway of vision.ppt
The eye is the main organ of vision. Light enters through the cornea and pupil and is focused by the lens onto the retina. The retina converts the light into neural signals which are transmitted through the optic nerve to the visual cortex of the brain, where an image is formed. The eye contains several parts including the iris, ciliary body, retina, sclera, choroid and optic nerve. Nutrients like vitamins A, C, lutein and zeaxanthin obtained from foods help support eye health and protect against vision problems.
The human eye
The human eye is an organ that reacts to light in many circumstances. As a conscious sense organ the human eye allows vision; rod and cone cells in the retina allow conscious light perception and vision, including color differentiation and the perception of depth. The human eye can distinguish about 10 million colors.
Anatomy of Eye by radhika kulvi, M.Sc nursing
The eye is a paired organ, the organ of vision. The eye is made up of various components, which enable it to receive light stimuli from the environment, and deliver this stimuli to the brain in the form of an electrical signal. Vision involves all components of the eye.
DEFINITION:The human eye is a sensory organ,that reacts to visible light and allow to use visual information for various purposes including seeing things,keeping our balance and circadian rhythm.
STRUCTURE
The eye is contained within the bony orbit of the head. The bony orbit is a cavity, comprising parts of the lacrimal bone (includes fossa for nasolacrimal duct) and the maxilla (includes caudal foramen of infraorbital canal). It is continuous with the temporal bone and the pterygopalatine fossa caudally. It is situated in the orbital cavity and is supplied by 2nd cranial nerve.
The eye. physio.lourdes
The document summarizes key concepts about the optics and anatomy of the human eye. It describes how light refracts as it enters the eye, the role of the cornea, aqueous humor, lens, and vitreous humor in forming an image on the retina. It also discusses accommodation, common vision problems like myopia and hyperopia, and conditions like cataracts and glaucoma. In particular, it notes that the eye focuses light through refraction at four interfaces to form an inverted image on the retina, and that accommodation allows the lens to change shape for focusing on near and far objects.
Sense organs
The document provides information about the anatomy and physiology of the human eye:
- The eye has three layers - an outer fibrous layer, a middle vascular layer, and an inner nervous layer. It contains specialized structures like the cornea, iris, lens, retina, and optic nerve.
- The retina contains two types of photoreceptor cells - rods and cones. Rods are responsible for dim light vision while cones provide color vision and function in bright light.
- When light enters the eye, it passes through the cornea and lens, which refract the light to focus an image onto the retina. The photoreceptor cells in the retina then convert the image into nerve impulses that
Sence [vision]
The document provides information on the structure and functions of the eye. It discusses the various parts of the eye including the orbital cavity, eyelids, conjunctiva, eyeball, cornea, sclera, choroid, ciliary body, iris, pupil, lens, retina, aqueous humor, and vitreous humor. It also describes common eye conditions like glaucoma and cataract, their causes, symptoms and treatments.
The human eye amatomy
The eye contains three layers - outer fibrous layer, middle vascular layer, and inner nervous tissue layer. Light enters through the cornea and pupil, and is focused by the lens onto the retina. The retina converts light into electrical signals which are transmitted by the optic nerve to the brain. Muscles attached to the iris control the size of the pupil to regulate the amount of light entering the eye.
EYE.pptx
The pupil regulates the amount of light entering the eye. The iris controls the size of the pupil and protects the eye. The sclera maintains the shape of the eyeball and protects it from injury. The cornea protects the inside of the eye and focuses light onto the retina. The lens transmits and focuses light onto the retina. The retina converts light into electrical signals for the brain to perceive images.
Anatomy of the Human Eye By Mohammed Shurrab
The document provides an overview of the anatomy of the human eye. It describes the three main layers that make up the eyeball: the outer fibrous tunic, middle vascular tunic, and inner nervous tunic (retina). It then focuses on the structures within the fibrous tunic, including the cornea and sclera, as well as the five layers that make up the cornea: epithelium, Bowman's layer, stroma, Descemet's membrane, and endothelium. Finally, it briefly discusses the choroid layer of the vascular tunic located underneath the sclera.
Anatomy and physiology of the Eye-Nursing
This is a powerpoint made to help the nursing students understand and learn the antomy and physiology of the eye in an esy and quick manner.
Similar to Ramya completed (20)
structure and fuction of eyes and ears,types of memory,sharpe memory,attention
structure and fuction of eyes and ears,types of memory,sharpe memory,attention
SHAHID KHAN AZMI.organ of vision and pathway of vision.ppt
SHAHID KHAN AZMI.organ of vision and pathway of vision.ppt
More from Sano Anil
Lesson template remya
This document outlines a teaching manual for a lesson on Egyptian civilization. It includes details like the name of the teacher, school, subject, unit, and topic. It provides context about Egyptian civilization like its location along the Nile River, use of hieroglyphics for writing, and construction of pyramids to tomb pharaohs. The lesson plan involves introducing the topic, presenting key facts and concepts, and engaging students in activities like discussing hieroglyphics and pyramids in small groups.
Volcanoes
Volcanoes form when molten rock flows from fissures in the Earth's surface caused by movement of tectonic plates. Volcanoes are classified as active, extinct, or dormant based on eruption likelihood. Active volcanoes frequently erupt, like Mount Etna and Mount Fujiyama. Extinct volcanoes were once active but will not erupt again, such as Kilimanjaro. Dormant volcanoes erupted in the past but are not currently active, though they could become active again, for example Vesuvius in Italy.
Volcanoes
Volcanoes form when molten rock flows from fissures in the Earth's surface caused by movement of tectonic plates. Volcanoes are classified as active, extinct, or dormant based on eruption likelihood. Active volcanoes frequently erupt, like Mount Etna and Mount Fujiyama. Extinct volcanoes were once active but will not erupt again, such as Kilimanjaro. Dormant volcanoes erupted in the past but are not currently active, though they could become active again, for example Vesuvius in Italy.
Innovative
The document is a submission by Sabareesh.P.S for innovative work in physical science. It provides his registration number 13367008 and indicates he is a student at J B M C T C, Kayamkulam.
Parambariyam
This document discusses innovative teaching methods in biology that incorporate local resources and hands-on learning. It provides examples of how various biological components like proteins, lipids, and minerals can be taught about and used to explain their importance in living organisms and the environment. Students are shown experimenting with different biological samples and learning about their structures and roles through discussion. The summary emphasizes hands-on, collaborative learning around real-world examples to help students make deeper connections between biology, their surroundings, and their culture.
Sabareeshpsppt
This PowerPoint presentation summarizes Newton's contributions and laws of motion. Newton developed calculus, proved that white light is composed of rainbow colors, invented the reflecting telescope, and formulated the laws of motion and universal law of gravitation. Newton's First Law, also called the law of inertia, states that an object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force. The presentation explains balanced and unbalanced forces and how inertia increases with increasing mass of an object.
Lesson template of sabareesh.p.s
This document outlines a teaching manual for a physical science lesson on factors affecting acceleration due to gravity. It provides details on the teacher, class, subject, duration, topic, and date. The curricular statement indicates students will generate knowledge on factors affecting gravity through discussion, demonstration, experimentation and evaluation. Learning outcomes include recalling, understanding, applying, analyzing, and creating knowledge related to the topic. The lesson plan follows an inquiry training model in 5 phases from encountering the problem to analyzing thinking strategies.
Innovative work.compressed
This document appears to be a submission for an innovative work project from a student named Sindhya. S. studying Physical Science with a registration number of 13367011 at J B M C T E in Kayamkulam. The document title and student information provide the key details about what is being submitted.
Innovative work
This document appears to be a submission for an innovative work project from a student named Sindhya. S. studying Physical Science with a registration number of 13367011 at J B M C T E in Kayamkulam. The document title and student information provide the key details about what is being submitted.
Lesson template of sabareesh.p.s
This document outlines a teaching manual for a physical science lesson on factors affecting acceleration due to gravity. It provides details on the teacher, class, subject, duration, topic, and date. The curricular statement indicates students will generate knowledge on factors affecting gravity through discussion, demonstration, experimentation, observation and evaluation. Learning outcomes include recalling, understanding, applying, analyzing, and creating knowledge related to the topic. The lesson plan follows an inquiry training model in 5 phases from encountering the problem to analyzing thinking strategies.
Lesson template of sabareesh.p.s
This document outlines a teaching manual for a physical science lesson on factors affecting acceleration due to gravity. It provides details on the teacher, class, subject, duration, topic, and date. It describes the curriculum statement, new terms, facts, concepts, and learning outcomes related to developing different types of knowledge. It outlines the phases of an inquiry training model used in the lesson, including encountering the problem, developing explanations, and analyzing thinking strategies. It also discusses the social system, principles of reaction, support system, and instructional and nurturing effects of the model.
Sabareesh p s ppt
This power point presentation by Sabareesh P.S. summarizes Newton's contributions and laws of motion. Newton developed calculus, demonstrated that white light is composed of rainbow colors, invented the reflecting telescope, and formulated the laws of motion and universal law of gravitation. Newton's First Law, also called the law of inertia, states that an object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force. The presentation provides examples of how friction and gravity cause moving objects to eventually stop due to the unbalanced forces they create.
Lesson template of sabareesh.p.s
This document outlines a teaching manual for a physical science lesson on factors affecting acceleration due to gravity. It provides details on the teacher, class, school, subject, duration, topic, and date. The curricular statement and learning outcomes describe enabling students to generate knowledge on factors affecting gravity through discussion, demonstration, and experimentation. The content analysis lists facts and concepts to be covered. The lesson plan follows an inquiry training model in 5 phases from encountering the problem to analyzing thinking strategies with the goal of developing students' knowledge and process skills related to factors affecting acceleration due to gravity.
Teaching mannuel
This document is a teaching manual for a natural science class on neurons. It provides details on the class such as the teacher's name, school, date, class size and duration. The document outlines the learning outcomes which are to develop students' factual, conceptual, procedural and metacognitive knowledge of neurons. It discusses developing students' process skills like observation and communication. The document also includes an analysis of the content to be covered, pre-requisites, teaching resources and procedures, expected student responses and follow up activities like review questions and assignments.
Teaching manual
The document provides a lesson plan for teaching 8th grade students about the surroundings of Kuttanad in Kerala, India. It includes the name of the teacher, school, subject, unit, topic, learning outcomes, content analysis, concepts, previous student knowledge, and classroom activities. The lesson introduces students to Kuttanad's unique landscape of backwaters, villages on stilts, and way of life. Students learn about Kuttanad's role in Kerala's backwaters network and history as an important trading center. The lesson concludes with a review of key topics and an enrichment activity asking students to research life in Kuttanad or imagine a trip there.
Continents
The document summarizes the seven continents of Earth. It describes the key facts about each continent, such as their relative sizes, countries they contain, and notable geographic features. The seven continents are North America, South America, Europe, Asia, Africa, Australia, and Antarctica.
World religions
Christianity originated around 0 CE and is based on the belief that Jesus Christ was the son of God. The Christian Bible contains both the Old Testament and the New Testament. Islam was founded in the 7th century CE by the prophet Muhammad and believes in one God called Allah. Hinduism originated around 2500 BCE and believes in reincarnation and escaping the cycle of rebirth. Sikhism was founded in the 15th century by Guru Nanak and believes in one powerful God best understood through meditation.
Pendulum
The document is a PowerPoint presentation about the simple pendulum and periodic motion. It defines a simple pendulum as a mass attached to a string that is free to swing back and forth. The motion of the pendulum is periodic, meaning it repeats at regular time intervals. The time taken to complete one full swing from side to side is called the periodic time or period of the pendulum.
Teaching manual sandhy. s
This document outlines a teaching manual submitted by Sindhya S. for a concept attainment model lesson plan. It includes sections on the curriculum statement, learning outcomes in different domains, essential and non-essential attributes, and outlines the three phases of the concept attainment model - presentation of data, testing attainment of the concept, and analysis and thinking strategies. The document provides the framework for a lesson but does not include details on the specific topic, class, or activities.
More from Sano Anil (20)
Recently uploaded
THE SACRIFICE HOW PRO-PALESTINE PROTESTS STUDENTS ARE SACRIFICING TO CHANGE T...
The recent surge in pro-Palestine student activism has prompted significant responses from universities, ranging from negotiations and divestment commitments to increased transparency about investments in companies supporting the war on Gaza. This activism has led to the cessation of student encampments but also highlighted the substantial sacrifices made by students, including academic disruptions and personal risks. The primary drivers of these protests are poor university administration, lack of transparency, and inadequate communication between officials and students. This study examines the profound emotional, psychological, and professional impacts on students engaged in pro-Palestine protests, focusing on Generation Z's (Gen-Z) activism dynamics. This paper explores the significant sacrifices made by these students and even the professors supporting the pro-Palestine movement, with a focus on recent global movements. Through an in-depth analysis of printed and electronic media, the study examines the impacts of these sacrifices on the academic and personal lives of those involved. The paper highlights examples from various universities, demonstrating student activism's long-term and short-term effects, including disciplinary actions, social backlash, and career implications. The researchers also explore the broader implications of student sacrifices. The findings reveal that these sacrifices are driven by a profound commitment to justice and human rights, and are influenced by the increasing availability of information, peer interactions, and personal convictions. The study also discusses the broader implications of this activism, comparing it to historical precedents and assessing its potential to influence policy and public opinion. The emotional and psychological toll on student activists is significant, but their sense of purpose and community support mitigates some of these challenges. However, the researchers call for acknowledging the broader Impact of these sacrifices on the future global movement of FreePalestine.
Wound healing PPT
This document provides an overview of wound healing, its functions, stages, mechanisms, factors affecting it, and complications.
A wound is a break in the integrity of the skin or tissues, which may be associated with disruption of the structure and function.
Healing is the body’s response to injury in an attempt to restore normal structure and functions.
Healing can occur in two ways: Regeneration and Repair
There are 4 phases of wound healing: hemostasis, inflammation, proliferation, and remodeling. This document also describes the mechanism of wound healing. Factors that affect healing include infection, uncontrolled diabetes, poor nutrition, age, anemia, the presence of foreign bodies, etc.
Complications of wound healing like infection, hyperpigmentation of scar, contractures, and keloid formation.
Gender and Mental Health - Counselling and Family Therapy Applications and In...
A proprietary approach developed by bringing together the best of learning theories from Psychology, design principles from the world of visualization, and pedagogical methods from over a decade of training experience, that enables you to: Learn better, faster!
BÀI TẬP BỔ TRỢ TIẾNG ANH LỚP 8 - CẢ NĂM - FRIENDS PLUS - NĂM HỌC 2023-2024 (B...
BÀI TẬP BỔ TRỢ TIẾNG ANH LỚP 8 - CẢ NĂM - FRIENDS PLUS - NĂM HỌC 2023-2024 (B...Nguyen Thanh Tu Collection
https://app.box.com/s/nrwz52lilmrw6m5kqeqn83q6vbdp8yzpElevate Your Nonprofit's Online Presence_ A Guide to Effective SEO Strategies...
Whether you're new to SEO or looking to refine your existing strategies, this webinar will provide you with actionable insights and practical tips to elevate your nonprofit's online presence.
Level 3 NCEA - NZ: A Nation In the Making 1872 - 1900 SML.ppt
The History of NZ 1870-1900.
Making of a Nation.
From the NZ Wars to Liberals,
Richard Seddon, George Grey,
Social Laboratory, New Zealand,
Confiscations, Kotahitanga, Kingitanga, Parliament, Suffrage, Repudiation, Economic Change, Agriculture, Gold Mining, Timber, Flax, Sheep, Dairying,
Accounting for Restricted Grants When and How To Record Properly
In this webinar, member learned how to stay in compliance with generally accepted accounting principles (GAAP) for restricted grants.
NIPER 2024 MEMORY BASED QUESTIONS.ANSWERS TO NIPER 2024 QUESTIONS.NIPER JEE 2...
NIPER JEE PYQ
NIPER JEE QUESTIONS
MOST FREQUENTLY ASK QUESTIONS
NIPER MEMORY BASED QUWSTIONS
skeleton System.pdf (skeleton system wow)
🔥🔥🔥🔥🔥🔥🔥🔥🔥
إضغ بين إيديكم من أقوى الملازم التي صممتها
ملزمة تشريح الجهاز الهيكلي (نظري 3)
💀💀💀💀💀💀💀💀💀💀
تتميز هذهِ الملزمة بعِدة مُميزات :
1- مُترجمة ترجمة تُناسب جميع المستويات
2- تحتوي على 78 رسم توضيحي لكل كلمة موجودة بالملزمة (لكل كلمة !!!!)
#فهم_ماكو_درخ
3- دقة الكتابة والصور عالية جداً جداً جداً
4- هُنالك بعض المعلومات تم توضيحها بشكل تفصيلي جداً (تُعتبر لدى الطالب أو الطالبة بإنها معلومات مُبهمة ومع ذلك تم توضيح هذهِ المعلومات المُبهمة بشكل تفصيلي جداً
5- الملزمة تشرح نفسها ب نفسها بس تكلك تعال اقراني
6- تحتوي الملزمة في اول سلايد على خارطة تتضمن جميع تفرُعات معلومات الجهاز الهيكلي المذكورة في هذهِ الملزمة
واخيراً هذهِ الملزمة حلالٌ عليكم وإتمنى منكم إن تدعولي بالخير والصحة والعافية فقط
كل التوفيق زملائي وزميلاتي ، زميلكم محمد الذهبي 💊💊
🔥🔥🔥🔥🔥🔥🔥🔥🔥
How Barcodes Can Be Leveraged Within Odoo 17
In this presentation, we will explore how barcodes can be leveraged within Odoo 17 to streamline our manufacturing processes. We will cover the configuration steps, how to utilize barcodes in different manufacturing scenarios, and the overall benefits of implementing this technology.
How to Fix [Errno 98] address already in use
This slide will represent the cause of the error “[Errno 98] address already in use” and the troubleshooting steps to resolve this error in Odoo.
RHEOLOGY Physical pharmaceutics-II notes for B.pharm 4th sem students
Physical pharmaceutics notes for B.pharm students
Educational Technology in the Health Sciences
Plenary presentation at the NTTC Inter-university Workshop, 18 June 2024, Manila Prince Hotel.
Jemison, MacLaughlin, and Majumder "Broadening Pathways for Editors and Authors"
Jemison, MacLaughlin, and Majumder "Broadening Pathways for Editors and Authors"National Information Standards Organization (NISO)
This presentation was provided by Racquel Jemison, Ph.D., Christina MacLaughlin, Ph.D., and Paulomi Majumder. Ph.D., all of the American Chemical Society, for the second session of NISO's 2024 Training Series "DEIA in the Scholarly Landscape." Session Two: 'Expanding Pathways to Publishing Careers,' was held June 13, 2024.Philippine Edukasyong Pantahanan at Pangkabuhayan (EPP) Curriculum
(𝐓𝐋𝐄 𝟏𝟎𝟎) (𝐋𝐞𝐬𝐬𝐨𝐧 𝟏)-𝐏𝐫𝐞𝐥𝐢𝐦𝐬
𝐃𝐢𝐬𝐜𝐮𝐬𝐬 𝐭𝐡𝐞 𝐄𝐏𝐏 𝐂𝐮𝐫𝐫𝐢𝐜𝐮𝐥𝐮𝐦 𝐢𝐧 𝐭𝐡𝐞 𝐏𝐡𝐢𝐥𝐢𝐩𝐩𝐢𝐧𝐞𝐬:
- Understand the goals and objectives of the Edukasyong Pantahanan at Pangkabuhayan (EPP) curriculum, recognizing its importance in fostering practical life skills and values among students. Students will also be able to identify the key components and subjects covered, such as agriculture, home economics, industrial arts, and information and communication technology.
𝐄𝐱𝐩𝐥𝐚𝐢𝐧 𝐭𝐡𝐞 𝐍𝐚𝐭𝐮𝐫𝐞 𝐚𝐧𝐝 𝐒𝐜𝐨𝐩𝐞 𝐨𝐟 𝐚𝐧 𝐄𝐧𝐭𝐫𝐞𝐩𝐫𝐞𝐧𝐞𝐮𝐫:
-Define entrepreneurship, distinguishing it from general business activities by emphasizing its focus on innovation, risk-taking, and value creation. Students will describe the characteristics and traits of successful entrepreneurs, including their roles and responsibilities, and discuss the broader economic and social impacts of entrepreneurial activities on both local and global scales.
BÀI TẬP BỔ TRỢ TIẾNG ANH LỚP 9 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2024-2025 - ...
BÀI TẬP BỔ TRỢ TIẾNG ANH LỚP 9 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2024-2025 - ...Nguyen Thanh Tu Collection
https://app.box.com/s/tacvl9ekroe9hqupdnjruiypvm9rdaneRecently uploaded (20)
THE SACRIFICE HOW PRO-PALESTINE PROTESTS STUDENTS ARE SACRIFICING TO CHANGE T...
THE SACRIFICE HOW PRO-PALESTINE PROTESTS STUDENTS ARE SACRIFICING TO CHANGE T...
Gender and Mental Health - Counselling and Family Therapy Applications and In...
Gender and Mental Health - Counselling and Family Therapy Applications and In...
BÀI TẬP BỔ TRỢ TIẾNG ANH LỚP 8 - CẢ NĂM - FRIENDS PLUS - NĂM HỌC 2023-2024 (B...
BÀI TẬP BỔ TRỢ TIẾNG ANH LỚP 8 - CẢ NĂM - FRIENDS PLUS - NĂM HỌC 2023-2024 (B...
Elevate Your Nonprofit's Online Presence_ A Guide to Effective SEO Strategies...
Elevate Your Nonprofit's Online Presence_ A Guide to Effective SEO Strategies...
Level 3 NCEA - NZ: A Nation In the Making 1872 - 1900 SML.ppt
Level 3 NCEA - NZ: A Nation In the Making 1872 - 1900 SML.ppt
Accounting for Restricted Grants When and How To Record Properly
Accounting for Restricted Grants When and How To Record Properly
NIPER 2024 MEMORY BASED QUESTIONS.ANSWERS TO NIPER 2024 QUESTIONS.NIPER JEE 2...
NIPER 2024 MEMORY BASED QUESTIONS.ANSWERS TO NIPER 2024 QUESTIONS.NIPER JEE 2...
RHEOLOGY Physical pharmaceutics-II notes for B.pharm 4th sem students
RHEOLOGY Physical pharmaceutics-II notes for B.pharm 4th sem students
Jemison, MacLaughlin, and Majumder "Broadening Pathways for Editors and Authors"
Jemison, MacLaughlin, and Majumder "Broadening Pathways for Editors and Authors"
SWOT analysis in the project Keeping the Memory @live.pptx
SWOT analysis in the project Keeping the Memory @live.pptx
Philippine Edukasyong Pantahanan at Pangkabuhayan (EPP) Curriculum
Philippine Edukasyong Pantahanan at Pangkabuhayan (EPP) Curriculum
BÀI TẬP BỔ TRỢ TIẾNG ANH LỚP 9 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2024-2025 - ...
BÀI TẬP BỔ TRỢ TIẾNG ANH LỚP 9 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2024-2025 - ...
Ramya completed
- 1. W E L C O M E
- 2. Reg: No : 13367015
- 5. IS A THIN PROTECTIVE COVERING OF EPITHELIAL CELLS. IT PROTECTS THE CORNEA AGAINST DAMAGE BY FRICTION (TEARS FROM THE TEAR GLANDS HELP THIS PROCESS BY LUBRICATING THE SURFACE OF THE CONJUNCTIVA)
- 6. IS THE TRANSPARENT, CURVED FRONT OF THE EYE WHICH HELPS TO CONVERGE THE LIGHT RAYS WHICH ENTER THE EYE
- 7. IS AN OPAQUE, FIBROUS, PROTECTIVE OUTER STRUCTURE. IT IS SOFT CONNECTIVE TISSUE, AND THE SPHERICAL SHAPE OF THE EYE IS MAINTAINED BY THE PRESSURE OF THE LIQUID INSIDE. IT PROVIDES ATTACHMENT SURFACES FOR EYE MUSCLES
- 8. HAS A NETWORK OF BLOOD VESSELS TO SUPPLY NUTRIENTS TO THE CELLS AND REMOVE WASTE PRODUCTS. IT IS PIGMENTED THAT MAKES THE RETINA APPEAR BLACK, THUS PREVENTING REFLECTION OF LIGHT WITHIN THE EYEBALL
- 9. HAS SUSPENSORY LIGAMENTS THAT HOLD THE LENS IN PLACE. IT SECRETES THE AQUEOUS HUMOUR, AND CONTAINS CILIARY MUSCLES THAT ENABLE THE LENS TO CHANGE SHAPE, DURING ACCOMMODATION (FOCUSING ON NEAR AND DISTANT OBJECTS)
- 10. IS A PIGMENTED MUSCULAR STRUCTURE CONSISTING OF AN INNER RING OF CIRCULAR MUSCLE AND AN OUTER LAYER OF RADIAL MUSCLE. ITS FUNCTION IS TO HELP CONTROL THE AMOUNT OF LIGHT ENTERING THE EYE SO THAT: - TOO MUCH LIGHT DOES NOT ENTER THE EYE WHICH WOULD DAMAGE THE RETINA - ENOUGH LIGHT ENTERS TO ALLOW A PERSON TO SEE
- 11. IS A HOLE IN THE MIDDLE OF THE IRIS WHERE LIGHT IS ALLOWED TO CONTINUE ITS PASSAGE. IN BRIGHT LIGHT IT IS CONSTRICTED AND IN DIM LIGHT IT IS DILATED
- 12. IS A TRANSPARENT, FLEXIBLE, CURVED STRUCTURE. ITS FUNCTION IS TO FOCUS INCOMING LIGHT RAYS ONTO THE RETINA USING ITS REFRACTIVE PROPERTIES
- 13. IS A LAYER OF SENSORY NEURONES, THE KEY STRUCTURES BEING PHOTORECEPTORS (ROD AND CONE CELLS) WHICH RESPOND TO LIGHT. CONTAINS RELAY NEURONES AND SENSORY NEURONES THAT PASS IMPULSES ALONG THE OPTIC NERVE TO THE PART OF THE BRAIN THAT CONTROLS VISION
- 14. A PART OF THE RETINA THAT IS DIRECTLY OPPOSITE THE PUPIL AND CONTAINS ONLY CONE CELLS. IT IS RESPONSIBLE FOR GOOD VISUAL ACUITY (GOOD RESOLUTION)
- 15. IS WHERE THE BUNDLE OF SENSORY FIBRES FORM THE OPTIC NERVE; IT CONTAINS NO LIGHT-SENSITIVE RECEPTORS
- 16. IS A TRANSPARENT, JELLY-LIKE MASS LOCATED BEHIND THE LENS. IT ACTS AS A ‘SUSPENSION’ FOR THE LENS SO THAT THE DELICATE LENS IS NOT DAMAGED. IT HELPS TO MAINTAIN THE SHAPE OF THE POSTERIOR CHAMBER OF THE EYEBALL
- 17. HELPS TO MAINTAIN THE SHAPE OF THE ANTERIOR CHAMBER OF THE EYEBALL