Unlike a person who is blind, a person with low vision has some useful sight. However, low vision usually interferes with the performance of daily activities, such as reading or driving. A person with low vision may not recognize images at a distance or be able to differentiate colors of similar tones. Although low vision can occur at any stage in life, it primarily affects the elderly. However, low vision is not a natural part of aging.
Most people develop low vision because of eye diseases.
Common causes of low vision, particularly with older adults, include macular degeneration , glaucoma , and diabetic retinopathy . When vision impairment is recognized early, treatment can be more effective, enabling people to maintain as much independence as possible. People who are legally blind may still have some useful vision, just like people who have low vision. If you are legally blind, you may qualify for certain government benefits. To determine the extent of your useful vision, you will need to have your eyes examined.