How the eye works:
The anatomy of the eye is complex. The main structures of the eye include:
Go to https://www.visionaustralia.org/search?keywords=eye%20conditions
for a video which provides you with an introduction to Vision Australia's videos for clients, and outlines the anatomy of the eye.
Screen reader users, to use the keyboard shortcuts, switch into forms mode. For JAWS press Insert + Z, for NVDA press Insert + Space for WindowEyes, press Ctrl + Shift + A and for VoiceOver press Left Arrow + Right Arrow
Player keyboard shortcuts
Control the player using keyboard:
Play/pause - space key.
Volume - up/down arrow keys.
Skip - left/right arrow keys.
Closed captions - c key.
Video Information - i key.
How does the eye see?
What are the parts of the retina?
With thanks to vision australia - blindness and low vision services.
Contact Call: 1300 84 74 66
TTY: 02 9334 3260
Fax: 1300 84 72 39
Email: [email protected]
Head office:
454 Glenferrie Road, Kooyong Vic 3144
Website: www.visionaustralia.org
MORE information on your eyes:
https://www.nlm.nih.gov/medlineplus/eyediseases.html
Common eye problems include:
------------------------------------------------
The macular region of the primate retina is yellow in color due to the presence of the macular pigment, composed of two dietary xanthophylls, lutein and zeaxanthin, and another xanthophyll, meso-zeaxanthin. The latter is presumably formed from either lutein or zeaxanthin in the retina. By absorbing blue-light, the macular pigment protects the underlying photoreceptor cell layer from light damage, possibly initiated by the formation of reactive oxygen species during a photosensitized reaction.
There is ample epidemiological evidence that the amount of macular pigment is inversely associated with the incidence of age-related macular degeneration, an irreversible process that is the major cause of blindness in the elderly.
https://www.ncbi.nlm.nih.gov/pubmed/12626691
Here are ten food sources high in lutein.
Foods considered good sources of lutein and zeaxanthin include:
Lutein and zeaxanthin are commonly found in dark-green leafy vegetables, such as spinach and kale, and are well-absorbed from egg yolk. A large egg yolk contains252 mcg of lutein and zeaxanthin.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1722697/
================================
What's New!
and SO MUCH MORE...
Hear any printed text, in real time.OrCam MyEye enables you to read anything, even text on a computer or smartphone screen – the ability to access printed information at any time and in any location has never existed before.
Always On – Instantaneous Access
Text-to-Speech traditionally occurs at a desk. More recent devices such as smart phone apps have provided mobility but require documents to be aligned and the camera held at a prescribed height. OrCam MyEye is hands free and can continuously scan the environment and read text as soon as it is encountered.
Equivalence of visually scanning
Traditional text-to-speech devices and reading machines scan a whole page, and then you have to listen to the whole page. Using artificial intelligence OrCam MyEye recognises the shape of your finger and will start to read wherever the finger moves to. This ability is unique to OrCam MyEye and is a major step forward for all people that struggle to read.
Read from any surface
Information in text form is everywhere, and not just on flat surfaces. Packaged foods and medicines come-in a wide variety of shapes and sizes, and are fabricated from many different materials. With the appropriate light level text can be read on plastics, fabrics, bottles and cans – just about any surface!
KEEP READING HERE: https://www.quantumrlv.com.au/news/how-can-orcam-help-you/?mc_cid=26e194fe6d&mc_eid=9441c8adca
Watch video:
https://www.orcam.com/en/about/
The next generation OrCam MyEye 2.0 was launched in 2017.
The OrCam MyEye 2.0 is a the size of your finger device that latches to the side of sunglasses or spectacles and reads out loud - on demand. By using simple pointing gestures, OrCam can detect the print or electronic text that you wish to read, and instantly read it back in your ear with a natural sounding voice.
VERY Good video: https://www.orcam.com/en/
In addition to reading near and distant print, OrCam 2.0 can also :
• Recognise faces of friends, colleagues and family
• Identify products by reading barcodes, banknotes and colours.
Download brochure:
https://docs.wixstatic.com/ugd/8949c5_6d9352342a5e42e48fa14eaacca113f0.pdf
https://www.orcam.com/en/myeye2/
Reads text
Reads any printed or digital text: newspapers, books, restaurant menus, signs, product labels, computer and smartphone screens. // All become accessible to you in an instant.
Recognise Faces.
Real-time identification of faces. // Recognize products, credit cards, money notes and more. // Great in social situations and gives independence.
For everyone.
All you have to do is point. // Recognizes simple hand gestures. // Ideal for use at work or at school, at home
or on the go. // Good for all ages and any level of vision.
===========================
NEURO-OPTOMETRIC REHABILITATION
Vision impairment appears often in people with Parkinson’s, but perhaps more particularly in people with Parkinsonisms, such as PSP. There are very few Neuro-Optometric Rehabilitation/Habilitation doctors in the United States that understand vision and neuro-degenerative diseases.
Disturbances of various visual systems manifest with many symptoms and/or behaviors. Patients who have been diagnosed with strokes, seizures, autism, brain injury, genetic diseases, processing problems or neuro-degenerative diseases may have subtle visual system dysfunctions. Neuro-optometric rehabilitation addresses those dysfunctions.
EXTERNAL DIFFICULTIES
Eyesight Comfort Spatial Judgments
• focusing
• dry eye
• walking
• aiming (double vision)
• visual perception
• depth perception
• clarity (visual acuity)
• vertigo
• visual midline shift
• visual field loss
The anatomy of the eye is complex. The main structures of the eye include:
- Cornea: clear tissue in the very front of the eye
- Iris: colored part of the eye surrounding the pupil
- Pupil: dark hole in the iris that regulates the amount of light going into the eye
- Lens: small clear disk inside the eye that focuses light rays onto the retina
- Retina: layer that lines the back of the eye, senses light, and creates electrical impulses that travel through the optic nerve to the brain
- Macula: small central area in the retina that allows us to see fine details clearly
- Optic nerve: connects the eye to the brain and carries the electrical impulses formed by the retina to the visual cortex of the brain
- Vitreous: clear, jelly-like substance that fills the middle of the eye
Go to https://www.visionaustralia.org/search?keywords=eye%20conditions
for a video which provides you with an introduction to Vision Australia's videos for clients, and outlines the anatomy of the eye.
Screen reader users, to use the keyboard shortcuts, switch into forms mode. For JAWS press Insert + Z, for NVDA press Insert + Space for WindowEyes, press Ctrl + Shift + A and for VoiceOver press Left Arrow + Right Arrow
Player keyboard shortcuts
Control the player using keyboard:
Play/pause - space key.
Volume - up/down arrow keys.
Skip - left/right arrow keys.
Closed captions - c key.
Video Information - i key.
How does the eye see?
- Light rays are reflected from an object and enter the eye through the clear, outer part of the eye known as the cornea.
- The light rays pass through the pupil and lens, which is behind the iris or coloured part of the eye.
- The cornea and the lens focus the light rays on to the retina, which is at the back of the eye.
- Photoreceptor cells in the retina pick up the light signals, change them into nerve impulses and convey these to the brain, where they can be perceived and understood as a visual image.
What are the parts of the retina?
- Retina - the nerve tissue layer that is sensitive to light impulses and transmits these to the brain. It contains photoreceptors, called rods and cones.
- Rods - specialised retinal photoreceptor cells located primarily in the peripheral retina. They are responsible for seeing form, shape and movement and function best in low levels of light.
- Cones -specialised photoreceptor cells in the retina, primarily concentrated in the macular area. They are responsible for detailed vision and colour perception.
- Macula - the area of the retina where most of the cones are found. This is the area responsible for detailed vision and colour perception.
With thanks to vision australia - blindness and low vision services.
Contact Call: 1300 84 74 66
TTY: 02 9334 3260
Fax: 1300 84 72 39
Email: [email protected]
Head office:
454 Glenferrie Road, Kooyong Vic 3144
Website: www.visionaustralia.org
MORE information on your eyes:
https://www.nlm.nih.gov/medlineplus/eyediseases.html
Common eye problems include:
- Refractive errors
- Cataracts - clouded lenses
- Glaucoma - a disorder caused by damage to the optic nerve
- Retinal disorders - problems with the nerve layer at the back of the eye
- Macular degeneration - a disease that destroys sharp, central vision
- Diabetic eye problems
- Conjunctivitis - an infection also known as pinkeye
------------------------------------------------
The macular region of the primate retina is yellow in color due to the presence of the macular pigment, composed of two dietary xanthophylls, lutein and zeaxanthin, and another xanthophyll, meso-zeaxanthin. The latter is presumably formed from either lutein or zeaxanthin in the retina. By absorbing blue-light, the macular pigment protects the underlying photoreceptor cell layer from light damage, possibly initiated by the formation of reactive oxygen species during a photosensitized reaction.
There is ample epidemiological evidence that the amount of macular pigment is inversely associated with the incidence of age-related macular degeneration, an irreversible process that is the major cause of blindness in the elderly.
https://www.ncbi.nlm.nih.gov/pubmed/12626691
Here are ten food sources high in lutein.
- Spinach. Green, leafy vegetables contain the best source of lutein and fresh spinach is one of the best. ...
- Kale. Dark green kale should be cooked to help you absorb the most lutein from it...
- Carrots. ...
- Broccoli. ...
- Eggs. ...
- Red and yellow peppers. ...
- Sweetcorn. ...
- Tomatoes...
Foods considered good sources of lutein and zeaxanthin include:
- Eggs.
- Leafy greens like spinach, kale, turnip greens, collard greens, and romaine lettuce.
- Broccoli.
- Zucchini.
- Garden peas and Brussels sprouts.
Lutein and zeaxanthin are commonly found in dark-green leafy vegetables, such as spinach and kale, and are well-absorbed from egg yolk. A large egg yolk contains252 mcg of lutein and zeaxanthin.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1722697/
================================
What's New!
and SO MUCH MORE...
Hear any printed text, in real time.OrCam MyEye enables you to read anything, even text on a computer or smartphone screen – the ability to access printed information at any time and in any location has never existed before.
Always On – Instantaneous Access
Text-to-Speech traditionally occurs at a desk. More recent devices such as smart phone apps have provided mobility but require documents to be aligned and the camera held at a prescribed height. OrCam MyEye is hands free and can continuously scan the environment and read text as soon as it is encountered.
Equivalence of visually scanning
Traditional text-to-speech devices and reading machines scan a whole page, and then you have to listen to the whole page. Using artificial intelligence OrCam MyEye recognises the shape of your finger and will start to read wherever the finger moves to. This ability is unique to OrCam MyEye and is a major step forward for all people that struggle to read.
Read from any surface
Information in text form is everywhere, and not just on flat surfaces. Packaged foods and medicines come-in a wide variety of shapes and sizes, and are fabricated from many different materials. With the appropriate light level text can be read on plastics, fabrics, bottles and cans – just about any surface!
KEEP READING HERE: https://www.quantumrlv.com.au/news/how-can-orcam-help-you/?mc_cid=26e194fe6d&mc_eid=9441c8adca
Watch video:
https://www.orcam.com/en/about/
The next generation OrCam MyEye 2.0 was launched in 2017.
The OrCam MyEye 2.0 is a the size of your finger device that latches to the side of sunglasses or spectacles and reads out loud - on demand. By using simple pointing gestures, OrCam can detect the print or electronic text that you wish to read, and instantly read it back in your ear with a natural sounding voice.
VERY Good video: https://www.orcam.com/en/
In addition to reading near and distant print, OrCam 2.0 can also :
• Recognise faces of friends, colleagues and family
• Identify products by reading barcodes, banknotes and colours.
Download brochure:
https://docs.wixstatic.com/ugd/8949c5_6d9352342a5e42e48fa14eaacca113f0.pdf
https://www.orcam.com/en/myeye2/
Reads text
Reads any printed or digital text: newspapers, books, restaurant menus, signs, product labels, computer and smartphone screens. // All become accessible to you in an instant.
Recognise Faces.
Real-time identification of faces. // Recognize products, credit cards, money notes and more. // Great in social situations and gives independence.
For everyone.
All you have to do is point. // Recognizes simple hand gestures. // Ideal for use at work or at school, at home
or on the go. // Good for all ages and any level of vision.
===========================
NEURO-OPTOMETRIC REHABILITATION
- Posted: January 1, 2018
Vision impairment appears often in people with Parkinson’s, but perhaps more particularly in people with Parkinsonisms, such as PSP. There are very few Neuro-Optometric Rehabilitation/Habilitation doctors in the United States that understand vision and neuro-degenerative diseases.
Disturbances of various visual systems manifest with many symptoms and/or behaviors. Patients who have been diagnosed with strokes, seizures, autism, brain injury, genetic diseases, processing problems or neuro-degenerative diseases may have subtle visual system dysfunctions. Neuro-optometric rehabilitation addresses those dysfunctions.
EXTERNAL DIFFICULTIES
Eyesight Comfort Spatial Judgments
• focusing
• dry eye
• walking
• aiming (double vision)
• visual perception
• depth perception
• clarity (visual acuity)
• vertigo
• visual midline shift
• visual field loss