low vision

Significant, permanent vision impairment that cannot be fully corrected with glasses, contact lenses, medications, or surgery. It results from eye diseases, congenital abnormalities, or injuries that damage the visual system, preventing satisfactory vision even when refractive errors are corrected. Low vision patients experience reduced visual acuity, contrast sensitivity, or visual fields that impair daily functioning like reading, mobility, and face recognition, yet some usable vision remains.