The human eye is located in bony sockets called orbits. It has three layers - the outer sclera, middle choroid layer with blood vessels, and inner retina layer with photoreceptor cells. The retina contains rod and cone cells that contain light-sensitive proteins to detect light and color. Signals from these cells are transmitted through the optic nerve to the brain for vision. The lens focuses light rays onto the retina, especially the dense fovea region for highest visual acuity. Fluids in the eye's chambers, such as the aqueous humor and vitreous humor, help maintain its shape and transfer signals.
THIS POWER POINT PRESENTATION IS TO GIVE READERS AN OVERVIEW ON THE ANATOMY AND PHYSIOLOGY OF THE EYE: STRUCTURES, FUNCTIONS OF EACH PART OF THE EYE, AS WELL AS THE PHYSIOLOGY ON HOW THE IMAGE IS CAPTURED IN THE EYE AND TRANSLATED BY THE BRAIN IN ORDER TO HAVE THE MEANINGFUL VIEW OF THE IMAGE.
THIS POWER POINT PRESENTATION IS TO GIVE READERS AN OVERVIEW ON THE ANATOMY AND PHYSIOLOGY OF THE EYE: STRUCTURES, FUNCTIONS OF EACH PART OF THE EYE, AS WELL AS THE PHYSIOLOGY ON HOW THE IMAGE IS CAPTURED IN THE EYE AND TRANSLATED BY THE BRAIN IN ORDER TO HAVE THE MEANINGFUL VIEW OF THE IMAGE.
A short simplified anatomy of eye. it includes explanation of all 3 layers of eyes, sclera, choroid and retina. Anatomy of cornea, conjunctiva, pupil, lens, iris, ciliary body etc. physiology of vision, its process and photochemical activity of eyes are discussed in detail.
A short simplified anatomy of eye. it includes explanation of all 3 layers of eyes, sclera, choroid and retina. Anatomy of cornea, conjunctiva, pupil, lens, iris, ciliary body etc. physiology of vision, its process and photochemical activity of eyes are discussed in detail.
Francesca Gottschalk - How can education support child empowerment.pptxEduSkills OECD
Francesca Gottschalk from the OECD’s Centre for Educational Research and Innovation presents at the Ask an Expert Webinar: How can education support child empowerment?
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
Model Attribute Check Company Auto PropertyCeline George
In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
Honest Reviews of Tim Han LMA Course Program.pptxtimhan337
Personal development courses are widely available today, with each one promising life-changing outcomes. Tim Han’s Life Mastery Achievers (LMA) Course has drawn a lot of interest. In addition to offering my frank assessment of Success Insider’s LMA Course, this piece examines the course’s effects via a variety of Tim Han LMA course reviews and Success Insider comments.
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
5. • The wall of the eye ball its composed of three
layers.
• The external layer -a dense connective tissue
called the sclera.
• The anterior portion of eye sclera layer is
called the cornea.
• The middle layer, choroid, contains many
blood vessels and looks bluish in colour.
• The choroid layer is thin over the posterior
two- third of the eye ball, but its become thick
in the anterior part of cilliary body.
6.
7. • The ciliary body itself continues forward to from a
pigmented and opaque structure called the iris
which is the visible coloured portion of the eye.
• The eye ball contains a trsanparent crystalline lens
which is held in place by ligaments attached to the
ciliary body.
• In front of the lens, the aperture surrounded by the
iris is called the pupil.
• The diameter of the pupil is regulated by the iris is
called the pupil
8. 3 layers of neural cells in retina
• The inner layer is the retina and its contains
three layer of nerual cell-from inside to outside
- ganglion cell, bipolor cells and photoreceptor
cell.
11. • These cells contain the Light-sensitive proteins
called the photo pigments.
• The day light(photopic) vision and colour vision
are function of cones and the twilight (Scotopic)
vision is the function of the rods.
• The rods contain a pruplish-red protein called the
rhodosin or visual purple, which contains a
derivative of vitamine A.
12. • In the human eye, there are three types of cones
which possess their own characteristic photo
pigments that respond to red, green and blue
light.
• The sensations of the different
colours are produced by
various combinations of these
cones and their photo
pigments.
• When these cones are
stimulated equally, a sensation
of which light is produced.
15. • The optic nerves leave the eye and the retina blood
vessels enter it at a point medial to and slightly
above the posterior pole of the eye ball.
• At the posterior pole of the eye lateral to the blind
spot, there is a yellowish pigmented spot called
macula lutea with a central pit called the fovea.
• The fovea is a thinned-out portion of the point
where ghe retina where the only the cones are
densely packed. It is the point where the visual
acuity(resolution) is the greatest.
• Photoreceptor cell are not present in that region
and hence it is called the blind spot.
18. Fluid filled chamber of eye
• The space between the cornea and the lens
is called the aquous chamber and contains a
thin watery fluid called aquous humor.
• The space between the lens and retina is
called the vitreous chamber and is filled
with a transparent gel called vitreous
humor.
19.
20.
21. Mechanisms of vision
• The light rays in visible wavelength focussed on
the retina through the cornea & lens generate
potentials (impulses) in rods & cones.
• The photosensitive
compounds(Photopigments) in the human eye
is composed of opsin (a protin)and retainal (an
aldehyde of vitamin A).
• Light induces dissociation of the retinal from
opsin resulting in change in the structure of the
opsin. This cause membrane permeability
changes.
22.
23. • As a result, potential differences are generated
in the photoreceptor cell.
• This produces a signal that generates action
potentials in the in the ganglion cells through
the bipolar cells.
• This action potentials (impulse) are
transmitted by the optic nerves to the visual
cortex area of the brain. Where the neural
impulses are analysed and the image formed
on the retina is recognised based on earlier
memory and experience.