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Less severe visual impairment is not captured by registration data, and its prevalence is difficult to quantify; Low vision A visual acuity of less than 6/18 but greater than 3/60. Not eligible to drive and may have difficulty recognising faces across a street, watching television, or choosing clean, unstained, co-ordinated clothing. [18]
[1] [2] Most visual rehabilitation services are focused on low vision, which is a visual impairment that cannot be fully corrected by regular eyeglasses, contact lenses, medication, or surgery. Low vision interferes with the ability to perform everyday activities. [3]
Low vision visual acuity examinations are done using the LogMAR chart. The advantage that this presents with is that it allows for more accurate measures of the individual's vision to be recorded. Other tests done and their significance are as follows: Amsler's grid test - to locate scotomas on the visual field of the individual
Orientation and Mobility training began after World War II when techniques were developed to help blind veterans of the war. Soldiers who had been blinded in battle were sent to recuperate at Valley Forge General Hospital before entering Avon Old Farms Convalescent Hospital, the U.S. Army's former experimental rehabilitation center for blind soldiers in Avon, Connecticut. [2]
There are many eye conditions that can lead to vision disorder. Some of which are as follows: Age-Related Macular Degeneration (ARMD): ARMD is a retinal degeneration disease specifically associated with macula blood vessels, which can result in central vision impairment. It is strongly linked to advancing age, as well as European ancestry.
Other new technologies also address visual impairments. One app helps visually impaired people find their seats in trains. Another is the Low-Vision Helmet, which allows users to zoom in on an ...