Visual Acuity Impairment (Corrected) is rated by the U.S. Department of Veterans Affairs under DC 6066 of 38 CFR § 4.76, § 4.79, DC 6063--6066 across 1 severity tier (0%). Service connection requires (1) a current diagnosis, (2) an in-service event, injury, or exposure, and (3) a medical nexus opinion linking the two under 38 C.F.R. § 3.303.
VA rates visual acuity impairment based on best-corrected vision using glasses, contact lenses, or intraocular lenses. Per § 4.76(a), only best-corrected Snellen acuity counts — refractive error itself is not service-connectable (§ 3.303(c)); only underlying pathology causing the acuity loss is rateable. Even with correction, residual visual impairment from disease, injury, or surgical complications may warrant a compensable rating up through DC 6066's paired-acuity sub-tables.
Rating criteria text quoted verbatim from 38 C.F.R. § 4.79 (Eye). Source verified 2026-05-17 by ClaimRecon Editorial Team against the Cornell Law CFR mirror; eCFR.gov is the authoritative government source.