May I know what exactly can a partially visual disabled patient see?

Question

Is it shapes and shadows? Or is it just blurry vision, and can a screen magnifier improve the vision on a computer?

Answer 1

The amount/pattern of residual vision of a person with a visual impairment varies from oe person to another.

Assistive technologies varie--but there is a lot of stuff out there. For ccomputers, special software packages (e.g. ZoomText, JAWS) can provide screen magnification/modification and/or speech output. What is best again depends ofn the individual and should be determined by the individual working with someone trained to asses ttheir needs.

Other common systems include document scanners, intrepretive software for images (like PDF files to convert them to machine-readable text for use with speech output) and portable and desktop reading machines (CCTVs).

BTW--unless you are referring to someone otherwise ill, the visually-impaired person is not "sick"--and the use of the term is not appropriate.

for more information, try these websites:
afb.org (American Foundation for the Blind)
nfb.org (National Federation of the Blind)
aph.org (American Printing House for the Blind)
loc.gov (National Library for the Blind and Physically Handicapped/Library of Congress)

Answer 2

I am legally blind and have some sight. Screen magnification does indeed help but you have to search around to find the right degree of magnification.

I can see colour , shape , texture. My depth perception is very low so I don't see things well to the left or right of my vision field. Therefore if you come up to me in my ' blind' spot so to speak I may not see you.

With my glasses I can see between 18 inches and 36 inches in front of me. Fine detail in faces or other things is a bugaboo for me , I rely on my ears to identify voices rather than facial features. I do not use a cane or a guide dog at the moment as I've lived the vast majority of my life in the city where I am living .

Oh I sometimes have trouble with glare , from the sun or lights, however I have no difficulty crossing streets etc. Signage may be another problem,especially if it is out of my accuity field or too high or there is no contrast in lettering and background.

But not everyone has as much vision as I do, each visually impaired person differs in what and how they see. However most visually impaired and even blind people do see something only about 1 per cent are totally blind.

Answer 3

There are many types of visual impairment and each one will make a person see things diffently.
Most well known is of course, short-sightedness.
In others, some people may see only blurred shapes, some can only see straight ahead.
In my case, for example, I can not read small prints and now, due to age-related deterioration (and this quite normal for people getting to my age) I cannot focus on anything close and need a pair of glasses to read documents but I can read my computer screen fine without any glasses.

So. I gues it is not possible to tell you EXACTLY what can a partially visual disabled patient see because it varies from person to person and depends on what disabling condition they have.

Hope this helps

Answer 4

It vary with each person, if someone has tunnel vision a large screen could make it harder for them.
Some can see shadows to the end of the hockey field.
Other shapes. One time I put on many glass to look at an art exhibition not to improve sight but to give you idea of what different vision problems are like

Answer 5

Short answer to first part of question: As repeatedly stated above, no, you can't. It depends on WHAT visual disability.

Not already mentioned:

* Tunnel vision (NOT the technical medical term). You can see only what is directly in front of your eyes, and often the arc diminishes over time.

* Macular degeneration. (The correct term; my mother has it.) You can see only around the edges, NOT what is directly in front of your eyes. Because the eyes are set up to see the greatest detail in the middle, you lose definition and some color discrimination. (My mother and the neighbor lady, also with the condition, laughed like anything when asked to sort thread-spools by color as part of a study. They not only weren't objectively good at it, they could TELL they weren't. When pink is indistinguishable from yellow . . . !) This also often gets worse with time.

Answer 6

First of all, it depends on what the visual disability is. Different disorders cause different visual results.

You might be amazed at the adaptive technology that is availabe. I have a friend who is totally blind and can "read" her emails. There is a thing called 'shark' I believe that helps those who are legally blind read the screen. Voice technology helps people write who cannot type. Start with the link provided.

Answer 7

Exactly? Each individual has a singular visual ability. So, exactly doesn't exist.