If you are farsighted, you have more trouble seeing up close than you do in the distance. However, it also means that you use your focusing system even out in the distance in order to make objects clear. People that don’t have any farsightedness are at rest in the distance and don’t need to use […]

Any eye discomfort caused by viewing something can be called eyestrain. Several causes are: reflective glare, improper corrective lenses, bright lights, improper viewing distance, and dry eyes. Computer usage can be a big contributor to eyestrain. Eyestrain can become a major barrier to use of Adaptive Technology or Assistive Technology. Although the print may be […]

There are many types of eye exams that test for certain conditions or evaluate the health of the eyes. Some of these are: age-related macular degeneration test, glaucoma check, near vision test, Snellen eye tests, dominant eye test, and vision acuity test.

Conditions that impact the ability to see can be caused by injury, by lesions of the brain or optic nerve, by disease of the cornea or retina, by pathological changes originating in systemic disorders and by cataract, glaucoma, or retinal detachment. Blindness can be caused by infectious diseases and by dietary deficiencies in underdeveloped countries. […]

There are many things that can affect the eyes. Some are inherited or develop at birth. Some are caused by accident or overuse of the eyes. Some are caused by diseases.

There are many special professionals who test and treat eye conditions and diseases. See Optometrist, Ophthalmologist, and Optician.

A computer-driven machine pressing braille dots into paper and other thin materials. Please see “Products” for links to manufacturers and retailers of such machines.

For visually impaired and blind users of computers, this term can have various meanings. For partially sighted individuals using screen magnificaton software, the characters on the screen can be made larger without regard to the file type — PDF, ASCII, etc. For very low vision and totally blind individuals using speech synthesis or a refreshable […]

This is a concept used in the ADA to identify the portions of an agency’s program that have to do with written documents. Written documents are viewed as part of the program of a public agency and therefore must be accessible in order for the communication to be deemed effective. For more information, see alternate […]

This medical diagnosis is most commonly understood to describe reversal of letters, numbers, or mirroring of such shapes. Since its original description, many types of dyslexia have been found to exist. Under many programs, this diagnosis is considered to be a disability. Such programs typically evaluate the specific manifestations present to gauge their impact on […]