Definition 

Low vision is defined as a visual impairment, not correctable by standard glasses, contact lenses, medicine, or surgery, that interferes with one's ability to perform everyday activities.  In short, it is vision that is not sufficient to do what you want to do.

Who gets low vision? 

Most people develop low vision because of eye diseases such as diabetic retinopathy or age-related macular degeneration. Low vision primarily affects people over age 65, but people of all ages can be affected due to conditions ranging from congenital eye diseases to eye injuries.

While lost vision usually cannot be restored, with the help of a visual aids for macular degeneration specialist and low vision aids, many people can learn to make the most of the vision that remains.

For a person to benefit from low vision care, there must be a degree of usable vision and a goal to do a visual task.