High Quality Content by WIKIPEDIA articles! People with low vision have reduced vision, even when using the best possible corrective lenses. Low vision may be a result of either congenital disease such as retinitis pigmentosa or Leber`s congenital amaurosis or of an acquired conditions such as optic atrophy. It is treated within a subspecialty of optometry and ophthalmology called "low vision". Individuals with low vision .