This document summarizes the three leading causes of blindness globally - cataracts, glaucoma, and age-related macular degeneration. It provides details on each condition, including risk factors, types, symptoms, and treatment options. Guide dogs are also discussed as a way blind individuals have regained independence. The document utilizes various images and citations to supplement the information presented.
Globally, 45 million people are blind due to three main causes: cataracts, glaucoma, and age-related macular degeneration. Guide dogs have helped blind persons regain independence since the 16th century. The document discusses the leading causes of blindness in detail, describing what each condition is, risk factors, symptoms, prevention, and treatment options. It also covers types of vision loss and tools that help the blind, such as the white cane, Braille, and guide dogs.
The document discusses designing non-visual games that can be played by both sighted and visually impaired individuals. It notes that most current devices like touchscreens are difficult for blind people to use. The document explores using haptic feedback and vibration to create games that can be played without visual cues by following rhythmic patterns. It also considers using doodling and meditation levels measured by brain activity to guide game play. The goal is to make gaming more inclusive and develop easy to use controllers for non-visual games.
The document provides instructions for teaching a blind child how to tie their shoes. It recommends using a book with a lace to demonstrate tying, having the child feel the motions as someone ties their shoe, and verbally explaining the steps which include making an X shape with the laces and looping each lace around the other to form knots. It emphasizes that learning to tie takes a lot of practice and recommends using real shoes, laces in a book, or ribbon to teach the skill.
This thesis explores blind image deconvolution via penalized maximum likelihood estimation. It was submitted by Khalid A. Abubaker to Howard University's Graduate School and Department of Electrical and Computer Engineering in partial fulfillment of the requirements for a Master of Engineering degree in May 2007.
Helen Keller was born in 1880 and developed illnesses as a toddler that left her both deaf and blind. In 1887, Anne Sullivan became her teacher and helped Helen learn language and communication. Helen went on to attend several schools for the deaf and blind before graduating from Radcliffe College in 1904. She spent her life as an advocate for others who were blind or deaf, publishing works about her experiences and working to establish libraries and services for the blind. Helen Keller died in 1968 at the age of 87 after suffering a heart attack.
This document provides guidance on writing an effective thesis statement. It defines a thesis statement as the central opinion of a paper that the writer aims to prove. A good thesis statement has three key parts - a topic, the writer's position on that topic, and a limit setting the scope. The document outlines characteristics of clear, specific, non-promissory thesis statements and provides examples of strong and weak statements. It emphasizes that a thesis must be a declarative sentence that states an argument to guide the paper's analysis and not a question, negative statement, or list.
Helen Keller, who was born deaf and blind, overcame tremendous adversity through the help of her teacher Anne Sullivan. The autobiography details Keller's childhood in Alabama and how Sullivan's pioneering methods taught her language and helped her graduate from college, becoming a world-renowned speaker and advocate for progressive causes. Keller toured over 30 countries advocating for the blind and published works detailing her experiences and the importance of reducing childhood blindness. She received the Presidential Medal of Freedom, demonstrating her remarkable achievements despite her disabilities through perseverance and the guidance of her devoted teacher Anne Sullivan.
This document summarizes a community health project conducted by Project AHEAD 2016 that aimed to raise awareness of glaucoma and eye care in the Asian American community in Chinatown, New York. The project team conducted a needs assessment survey of 52 community members to evaluate their knowledge of eye health issues. They then held two educational workshops at local senior centers, providing information on glaucoma prevention and treatment. The team also created promotional materials and hosted an information booth at a health fair. Through these outreach efforts, the project aimed to educate the community on the importance of regular eye exams and healthy eye habits for preventing vision loss from glaucoma and other conditions.
Globally, 45 million people are blind due to three main causes: cataracts, glaucoma, and age-related macular degeneration. Guide dogs have helped blind persons regain independence since the 16th century. The document discusses the leading causes of blindness in detail, describing what each condition is, risk factors, symptoms, prevention, and treatment options. It also covers types of vision loss and tools that help the blind, such as the white cane, Braille, and guide dogs.
The document discusses designing non-visual games that can be played by both sighted and visually impaired individuals. It notes that most current devices like touchscreens are difficult for blind people to use. The document explores using haptic feedback and vibration to create games that can be played without visual cues by following rhythmic patterns. It also considers using doodling and meditation levels measured by brain activity to guide game play. The goal is to make gaming more inclusive and develop easy to use controllers for non-visual games.
The document provides instructions for teaching a blind child how to tie their shoes. It recommends using a book with a lace to demonstrate tying, having the child feel the motions as someone ties their shoe, and verbally explaining the steps which include making an X shape with the laces and looping each lace around the other to form knots. It emphasizes that learning to tie takes a lot of practice and recommends using real shoes, laces in a book, or ribbon to teach the skill.
This thesis explores blind image deconvolution via penalized maximum likelihood estimation. It was submitted by Khalid A. Abubaker to Howard University's Graduate School and Department of Electrical and Computer Engineering in partial fulfillment of the requirements for a Master of Engineering degree in May 2007.
Helen Keller was born in 1880 and developed illnesses as a toddler that left her both deaf and blind. In 1887, Anne Sullivan became her teacher and helped Helen learn language and communication. Helen went on to attend several schools for the deaf and blind before graduating from Radcliffe College in 1904. She spent her life as an advocate for others who were blind or deaf, publishing works about her experiences and working to establish libraries and services for the blind. Helen Keller died in 1968 at the age of 87 after suffering a heart attack.
This document provides guidance on writing an effective thesis statement. It defines a thesis statement as the central opinion of a paper that the writer aims to prove. A good thesis statement has three key parts - a topic, the writer's position on that topic, and a limit setting the scope. The document outlines characteristics of clear, specific, non-promissory thesis statements and provides examples of strong and weak statements. It emphasizes that a thesis must be a declarative sentence that states an argument to guide the paper's analysis and not a question, negative statement, or list.
Helen Keller, who was born deaf and blind, overcame tremendous adversity through the help of her teacher Anne Sullivan. The autobiography details Keller's childhood in Alabama and how Sullivan's pioneering methods taught her language and helped her graduate from college, becoming a world-renowned speaker and advocate for progressive causes. Keller toured over 30 countries advocating for the blind and published works detailing her experiences and the importance of reducing childhood blindness. She received the Presidential Medal of Freedom, demonstrating her remarkable achievements despite her disabilities through perseverance and the guidance of her devoted teacher Anne Sullivan.
This document summarizes a community health project conducted by Project AHEAD 2016 that aimed to raise awareness of glaucoma and eye care in the Asian American community in Chinatown, New York. The project team conducted a needs assessment survey of 52 community members to evaluate their knowledge of eye health issues. They then held two educational workshops at local senior centers, providing information on glaucoma prevention and treatment. The team also created promotional materials and hosted an information booth at a health fair. Through these outreach efforts, the project aimed to educate the community on the importance of regular eye exams and healthy eye habits for preventing vision loss from glaucoma and other conditions.
This document provides information about various eye diseases from the National Eye Institute website. It begins with an overview of the anatomy of the eye and lists many common eye diseases. Separate articles then provide more detailed information about cataract, retinal detachment, and corneal disease. For each disease, it discusses symptoms, causes, risk factors and additional resources for more information available on the National Eye Institute website.
This document provides information about various eye diseases from the National Eye Institute website. It begins with an overview of the anatomy of the eye and lists many common eye diseases. Separate articles then provide more detailed information about cataract, retinal detachment, and corneal disease. For each disease, it discusses symptoms, causes, risk factors and additional resources for more information available on the National Eye Institute website.
This document discusses the nature vs nurture debate regarding the origins of human behavior and psychological characteristics. It covers several key points:
1) Genetic influences on behavior can be seen through selective breeding experiments, twin studies, and estimates of heritability for personality traits. Genes influence brain structure and function.
2) Environmental influences include physical factors like pollution and social factors like culture, parenting styles, and peer groups. Culture can influence behaviors like assertiveness.
3) There is an interplay between nature and nurture, as genes and environments interact and influence each other. Certain genes may correlate with certain environments. Gene expression can depend on the environment.
4) The document also discusses sex,
Low vision aids range from simple magnifiers to more advanced technological devices. The document discusses various low-tech and high-tech options for aiding low vision, including magnifiers, telescopes, audio devices, computer programs, and braille items. It also provides information on common eye conditions like cataracts and glaucoma that can cause low vision and outlines their symptoms and treatment options.
Canaloplasty New Glaucoma Treatment – HealthTalk at San Gabriel Valley Medica...Dr David Richardson
This document discusses canaloplasty, a new minimally invasive glaucoma treatment. It provides background on glaucoma, risk factors for the disease, and current treatment options like laser surgeries, trabeculectomy, and drainage devices. The document then focuses on canaloplasty, describing it as a non-penetrating procedure that uses a flexible microcatheter to pass through the eye's drainage canal 360 degrees. It notes the benefits of canaloplasty include lower intraocular pressure and fewer medication requirements compared to traditional surgeries, with a safer profile and no complications. A quote from the inventor of canaloplasty praises it as the closest procedure to having no complications.
Astigmatism is one of the most prevalent eye disorders, affecting approximately one in six Americans. It occurs when the cornea is irregularly shaped, causing blurred vision. Common symptoms include eyestrain, headaches, and blurred vision that worsens with fatigue. It can be detected in children if parts of images appear clearer than others at different angles. Astigmatism is usually corrected through prescription eyeglasses or contact lenses, and in some cases laser eye surgery. While its causes are not fully understood, astigmatism is known to have a genetic component and its prevalence has been increasing over time.
Global Medical Cures™ | CATARACT (What you should know)
DISCLAIMER-
Global Medical Cures™ does not offer any medical advice, diagnosis, treatment or recommendations. Only your healthcare provider/physician can offer you information and recommendations for you to decide about your healthcare choices.
The document summarizes key facts about eye cancer, including:
- Welders, farmers, fishermen and chemical workers have a higher risk of developing eye cancer. Whites also have a higher risk than African Americans.
- In 2008, there were 2,390 new eye cancer cases and 240 deaths in the US. Approximately 1,340 men and 1,050 women are diagnosed each year. 325 children are also diagnosed annually with eye tumors.
- Common symptoms of eye cancer include bulging of the eye, vision loss, eye pain, watery eyes, blurred vision, dark spots on the eye, and flashing lights or blurry lines.
Concussions, TBI, Reading, Balance, Car-Sickness, Attention, Visual Fatigue Problems Vision Therapy 101 for the Primary Care Practitioner By Stan Appelbaum, OD
This document provides information from a webinar on glaucoma presented by the Glaucoma Research Foundation. The webinar discussed what glaucoma is, including the types and risk factors. It covered how glaucoma is diagnosed and treated. It also addressed living with glaucoma and maintaining quality of life through management plans, adaptive tools, support groups and advocacy. The webinar emphasized that regular eye exams are important since glaucoma often has no early symptoms, and that early diagnosis and treatment can help prevent vision loss.
Diastrophic dysplasia is a genetic disorder that causes dwarfism. It is caused by a mutation in the SLC26A2 gene, which normally turns cartilage into bone. This mutation prevents bones from fully developing, resulting in severe limb shortening, joint deformities, clubfoot, and shortened lifespan. There is no cure, but treatments can help manage symptoms. It is diagnosed through x-rays and ultrasounds showing skeletal abnormalities.
1) Blindness can be defined and categorized in different ways such as total blindness, functional blindness, and legal blindness which refers to central visual acuity of 20/200 or less.
2) The leading causes of blindness worldwide are cataracts, glaucoma, trachoma, and childhood blindness. In developed countries, common causes include age-related macular degeneration, diabetic retinopathy, accidents, and glaucoma.
3) Management of blindness involves mobility training, use of assistive devices like long canes and guide dogs, reading aids such as magnifiers and braille, and adaptive technology including screen readers and refreshable braille displays.
Autism is a developmental disorder that affects social, communication, and behavioral development. It is usually diagnosed by age 3 and is characterized by difficulties with social interaction and communication. While the exact causes of autism are unknown, research suggests both genetic and environmental factors may play a role. Early intervention programs are important for treatment, as they can help children with autism develop basic life skills. Currently, there is no cure for autism, but treatment aims to lessen symptoms and help individuals gain greater independence.
Autism Awareness
Autism spectrum disorder begins at a young age and continues into adulthood, causing delays in social interaction, communication, and other skills. While research has increased understanding, there is still no known cure. Autism affects social, language, and behavioral development, with signs usually appearing in early childhood. Various therapies can help with social and learning skills, while the causes remain unclear and early intervention is important.
Autism Awareness
Autism spectrum disorder is a developmental disorder that is characterized by difficulties in social interaction and communication from a young age. While there is no known cure currently, early intervention programs can help children with autism develop important skills. Raising awareness of the signs and challenges of autism is crucial for supporting those on the autism spectrum.
Autism Awareness
Autism spectrum disorder is a developmental disorder that is characterized by difficulties in social interaction and communication from a young age. While there is no known cure, early intervention programs can help children with autism develop important skills. Research into the causes and treatments for autism continues in an effort to solve the puzzle of this complex condition.
The document provides an overview of autism, including:
1) Autism is a developmental disorder that affects social, communication, and behavioral skills from a young age.
2) While research has increased understanding, there is no known cure for autism.
3) Early diagnosis and intervention methods like applied behavior analysis can help children develop basic life skills.
Technological advancements have made it possible for patients to undergo cataract surgery in a matter of minutes, and experience life-changing improvements in vision within 24 hours.
Glaucoma Guidebook by James E. Croley III, M.D..pdfJames Croley III
There are approximately 3.5 million people in the United States with glaucoma. Almost half of the people with glaucoma do not know they have it. Glaucoma is the second leading cause of permanent blindness in people over age 65.
Dr. James E. Croley III, a respected ophthalmologist and eye surgeon, provides a comprehensive guide to glaucoma in this guidebook.
This document provides information about various eye diseases from the National Eye Institute website. It begins with an overview of the anatomy of the eye and lists many common eye diseases. Separate articles then provide more detailed information about cataract, retinal detachment, and corneal disease. For each disease, it discusses symptoms, causes, risk factors and additional resources for more information available on the National Eye Institute website.
This document provides information about various eye diseases from the National Eye Institute website. It begins with an overview of the anatomy of the eye and lists many common eye diseases. Separate articles then provide more detailed information about cataract, retinal detachment, and corneal disease. For each disease, it discusses symptoms, causes, risk factors and additional resources for more information available on the National Eye Institute website.
This document discusses the nature vs nurture debate regarding the origins of human behavior and psychological characteristics. It covers several key points:
1) Genetic influences on behavior can be seen through selective breeding experiments, twin studies, and estimates of heritability for personality traits. Genes influence brain structure and function.
2) Environmental influences include physical factors like pollution and social factors like culture, parenting styles, and peer groups. Culture can influence behaviors like assertiveness.
3) There is an interplay between nature and nurture, as genes and environments interact and influence each other. Certain genes may correlate with certain environments. Gene expression can depend on the environment.
4) The document also discusses sex,
Low vision aids range from simple magnifiers to more advanced technological devices. The document discusses various low-tech and high-tech options for aiding low vision, including magnifiers, telescopes, audio devices, computer programs, and braille items. It also provides information on common eye conditions like cataracts and glaucoma that can cause low vision and outlines their symptoms and treatment options.
Canaloplasty New Glaucoma Treatment – HealthTalk at San Gabriel Valley Medica...Dr David Richardson
This document discusses canaloplasty, a new minimally invasive glaucoma treatment. It provides background on glaucoma, risk factors for the disease, and current treatment options like laser surgeries, trabeculectomy, and drainage devices. The document then focuses on canaloplasty, describing it as a non-penetrating procedure that uses a flexible microcatheter to pass through the eye's drainage canal 360 degrees. It notes the benefits of canaloplasty include lower intraocular pressure and fewer medication requirements compared to traditional surgeries, with a safer profile and no complications. A quote from the inventor of canaloplasty praises it as the closest procedure to having no complications.
Astigmatism is one of the most prevalent eye disorders, affecting approximately one in six Americans. It occurs when the cornea is irregularly shaped, causing blurred vision. Common symptoms include eyestrain, headaches, and blurred vision that worsens with fatigue. It can be detected in children if parts of images appear clearer than others at different angles. Astigmatism is usually corrected through prescription eyeglasses or contact lenses, and in some cases laser eye surgery. While its causes are not fully understood, astigmatism is known to have a genetic component and its prevalence has been increasing over time.
Global Medical Cures™ | CATARACT (What you should know)
DISCLAIMER-
Global Medical Cures™ does not offer any medical advice, diagnosis, treatment or recommendations. Only your healthcare provider/physician can offer you information and recommendations for you to decide about your healthcare choices.
The document summarizes key facts about eye cancer, including:
- Welders, farmers, fishermen and chemical workers have a higher risk of developing eye cancer. Whites also have a higher risk than African Americans.
- In 2008, there were 2,390 new eye cancer cases and 240 deaths in the US. Approximately 1,340 men and 1,050 women are diagnosed each year. 325 children are also diagnosed annually with eye tumors.
- Common symptoms of eye cancer include bulging of the eye, vision loss, eye pain, watery eyes, blurred vision, dark spots on the eye, and flashing lights or blurry lines.
Concussions, TBI, Reading, Balance, Car-Sickness, Attention, Visual Fatigue Problems Vision Therapy 101 for the Primary Care Practitioner By Stan Appelbaum, OD
This document provides information from a webinar on glaucoma presented by the Glaucoma Research Foundation. The webinar discussed what glaucoma is, including the types and risk factors. It covered how glaucoma is diagnosed and treated. It also addressed living with glaucoma and maintaining quality of life through management plans, adaptive tools, support groups and advocacy. The webinar emphasized that regular eye exams are important since glaucoma often has no early symptoms, and that early diagnosis and treatment can help prevent vision loss.
Diastrophic dysplasia is a genetic disorder that causes dwarfism. It is caused by a mutation in the SLC26A2 gene, which normally turns cartilage into bone. This mutation prevents bones from fully developing, resulting in severe limb shortening, joint deformities, clubfoot, and shortened lifespan. There is no cure, but treatments can help manage symptoms. It is diagnosed through x-rays and ultrasounds showing skeletal abnormalities.
1) Blindness can be defined and categorized in different ways such as total blindness, functional blindness, and legal blindness which refers to central visual acuity of 20/200 or less.
2) The leading causes of blindness worldwide are cataracts, glaucoma, trachoma, and childhood blindness. In developed countries, common causes include age-related macular degeneration, diabetic retinopathy, accidents, and glaucoma.
3) Management of blindness involves mobility training, use of assistive devices like long canes and guide dogs, reading aids such as magnifiers and braille, and adaptive technology including screen readers and refreshable braille displays.
Autism is a developmental disorder that affects social, communication, and behavioral development. It is usually diagnosed by age 3 and is characterized by difficulties with social interaction and communication. While the exact causes of autism are unknown, research suggests both genetic and environmental factors may play a role. Early intervention programs are important for treatment, as they can help children with autism develop basic life skills. Currently, there is no cure for autism, but treatment aims to lessen symptoms and help individuals gain greater independence.
Autism Awareness
Autism spectrum disorder begins at a young age and continues into adulthood, causing delays in social interaction, communication, and other skills. While research has increased understanding, there is still no known cure. Autism affects social, language, and behavioral development, with signs usually appearing in early childhood. Various therapies can help with social and learning skills, while the causes remain unclear and early intervention is important.
Autism Awareness
Autism spectrum disorder is a developmental disorder that is characterized by difficulties in social interaction and communication from a young age. While there is no known cure currently, early intervention programs can help children with autism develop important skills. Raising awareness of the signs and challenges of autism is crucial for supporting those on the autism spectrum.
Autism Awareness
Autism spectrum disorder is a developmental disorder that is characterized by difficulties in social interaction and communication from a young age. While there is no known cure, early intervention programs can help children with autism develop important skills. Research into the causes and treatments for autism continues in an effort to solve the puzzle of this complex condition.
The document provides an overview of autism, including:
1) Autism is a developmental disorder that affects social, communication, and behavioral skills from a young age.
2) While research has increased understanding, there is no known cure for autism.
3) Early diagnosis and intervention methods like applied behavior analysis can help children develop basic life skills.
Technological advancements have made it possible for patients to undergo cataract surgery in a matter of minutes, and experience life-changing improvements in vision within 24 hours.
Glaucoma Guidebook by James E. Croley III, M.D..pdfJames Croley III
There are approximately 3.5 million people in the United States with glaucoma. Almost half of the people with glaucoma do not know they have it. Glaucoma is the second leading cause of permanent blindness in people over age 65.
Dr. James E. Croley III, a respected ophthalmologist and eye surgeon, provides a comprehensive guide to glaucoma in this guidebook.
2. Thesis
• Globally 45 million people are blind
due to three main causes and have had
to deal with not only loss of vision but
loss of independence as well. Guide
dogs have been traced back to the 16th
century and have helped blind persons
regain their independence.
http://www.art-dept.com/artists/rankin/portfolio/specialprojects/eyescapes/portfolio.html
6. Cataracts
#1 cause of blindness
worldwide
"Cataract - A Leading Cause of Blindness." Editorial. J Nepal Medical
Association 46.3 (July 2007): n. pag. Web. 2 Mar. 2011.
"Guide to Cataract Surgery ." Prevent Blindness America. N.p., n.d. Web. 2 Mar.
2011. <http://www.preventblindness.org>.
http://www.crystalensdoctor.com/images/cataract_eye.gif
7. Types of Cataracts
• Age Related
• Congenital
• Traumatic
• Secondary
"Guide to Cataract Surgery ." Prevent Blindness America. N.p., n.d.
Web. 2 Mar.
2011. <http://www.preventblindness.org>.
http://www.stlukeseye.com/images/img-cataract-photo.jpg
10. Who is most at risk?
http://www.fasttrackhappiness.com/images/beautiful_older_couple_2.jpg
11. Cataract Surgery
• Small incision is made in the
eye
• The cataract (cloudy lens) is
removed from the eye
through the small incision
• An IOL (Intraocular Lens) is
inserted in replace to the old
lens
"Guide to Cataract Surgery ." Prevent Blindness America. N.p., n.d. Web. 2 Mar.
2011. <http://www.preventblindness.org>.
http://www.hudsoneyemd.com/images/cataract%20surgery.jpg
12. Glaucoma
• Glaucoma is the result of the build up of aqueous
humor fluid in the eye
"Living with Glaucoma." National Glaucoma Research. American
Health Assistance
Foundation, n.d. Web. 15 Feb. 2011. <http:/www.ahaf.org/docs/
pdf-publications/livingwithglaucoma.pdf>
13. Glaucoma Cont.
• Leading cause of blindness in the
United States
• Affects over 3 million people
• Worldwide it affects close to 67 million
people
"Living with Glaucoma." National Glaucoma Research. American Health Assistance
Foundation, n.d. Web. 15 Feb. 2011. <http:/www.ahaf.org/docs/
pdf-publications/livingwithglaucoma.pdf>.
14. “The Sneak Thief of Sight”
• Glaucoma is often referred to as “the
sneak thief of sight”
• People often do not know they have
glaucoma until permanent damage has
occurred
"Living with Glaucoma." National Glaucoma Research. American Health Assistance
Foundation, n.d. Web. 15 Feb. 2011. <http:/www.ahaf.org/docs/
pdf-publications/livingwithglaucoma.pdf>.
15. Types of Glaucoma
• Open-Angle Glaucoma
• Closed-Angle Glaucoma
• Normal-Tension Glaucoma
"Living with Glaucoma." National Glaucoma Research. American Health Assistance
Foundation, n.d. Web. 15 Feb. 2011. <http:/www.ahaf.org/docs/
pdf-publications/livingwithglaucoma.pdf>.
17. Closed-Angle Glaucoma
"Living with Glaucoma." National Glaucoma Research. American Health Assistance
Foundation, n.d. Web. 15 Feb. 2011. <http:/www.ahaf.org/docs/
pdf-publications/livingwithglaucoma.pdf>.
18. Acute Closed-Angle
"Living with Glaucoma." National Glaucoma Research. American Health Assistance
Foundation, n.d. Web. 15 Feb. 2011. <http:/www.ahaf.org/docs/
pdf-publications/livingwithglaucoma.pdf>.
http://www.hakeem-sy.com/main/files/9-1_0.jpg
20. Normal-Tension Glaucoma
• There is no build up of the aqueous
humor fluid in the eye
• It is not well understood what causes
the damage to the optic nerve in this
type of glaucoma
22. Age-Related Macular Degeneration
• Destroys the macula
• part of the eye that
provides the sharp
central vision to
help you see objects
clearly
Age-Related Macular Degeneration. N.p.: National Institutes of Health, n.d.
National Eye Institute. Web. 25 Feb. 2011.
<http://www.nei.nih.gov/>.
23. Research Slides
• many with citations on the bottom for
information and images
• approximately 12-20 minutes
• prove your thesis
- chose this topic because I love dogs \n- wanted to look into something that would deal with dogs giving back to the community without them really knowing how much they are helping someone \n
- people who are legally blind have a central visual acuity in their better eye that when corrected does not exceed 20/200\n- or a visual field with a maximum angular diameter of no more than 20 degrees \n
\n
- what someone who has a cataract&#x2019;s eye would look like\n- best description is a cloudy looking lens \n- this is the number one cause world wide of blindness \n- throughout life our bodies replace old cells with new ones \n- as we get older the old cells in our eyes build up and block all of the light that is trying to pass through and that is how the cloudy vision occurs\n\n
age-related: 95% of cataracts are age-related after the age of 40 \ncongenital: these defects occur at birth by either an infection or inflammation during pregnancy\ntraumatic: lens damage from an eye injury such as a very hard blow, a cut, a puncture, intense heat, or a chemical burn \nsecondary: some medicines, eye disease, eye infection, or diseases such as diabetes can cause cataracts\n\n
- picture of what a person with cataracts sees \n
RISK FACTORS\n- uv light exposure\n- long term steroid use\n- heredity from family members who have had cataracts\n- eye injury or diseases \n- smoking\n\n
- more then half of the people over the age of 80 have had a cataract or have had surgery \n\n
\n
- the eye is always making a fluid called aqueous humor\n- this fluid helps maintain a normal eye pressure and provides the lens and the cornea with the nutrients that is needed\n- this fluid circulates in the front of the eye \n- it gets drained through the trabecular meshwork \n- there is usually a balance between how much of the Aqueous Humor is made and how much of it leaves the eye\n- when there is not a balance between the two then intraocular pressure builds up inside the eye\n- this leads to damages to the optic nerve and glaucoma can develop\n
- experts have predicted that about half of the 3 million people who are affected by glaucoma do not know that they have it\n
- it has no symptoms \n- vision loss from glaucoma cannot be regained\n- untreated glaucoma will lead to blindness \n
- Glaucoma is a group of diseases that are distinguished by the increase of pressure in the eye which leads to the nerve damages\n- there is many different types of diseases that fall into the category of glaucoma that can cause blindness \n
- open angle has no symptoms at first \n- high eye pressure is the most recognized risk factor for the development and progression of the disease\n- the pressure will continue to build up until the optic nerve is damaged\n- the first sign of this disease will be loss of peripheral vision\n- if left untreated this will lead to complete blindness \n
- there is two types of closed angle glaucoma\n- acute and chronic\n\n
- acute closed angle glaucoma is a medical emergency that needs to be treated immediately or else blindness can occur in one or two days \n- the iris and lens are suddenly blocked from receiving the aqueous humor fluid \n- symptoms of acute is severe pain, nausea, vommiting, and blurred vision\n- patient could possibly see halos around lights\n\n
- chronic closed angle glaucoma progresses slowly and will produce damage without symptoms (similar to open angle) \n
- it is believed that it is the result of a very fragile or weak optic nerve\n- also believed to develop from low blood flow to the optic nerve\n\n
\n
AMD is a common eye condition in people above the age of 50. \n- leading cause of vision loss is older adults\n- some people: advances so slowly that vision loss does not occur for a very long time \n\n