Loss of Inferior Half of Visual Field is rated by the U.S. Department of Veterans Affairs under DC 6080 of 38 CFR § 4.77, DC 6080 across 2 severity tiers (30% / 10%). 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.
Loss of the lower half of the visual field in one or both eyes (inferior altitudinal defect). Most commonly caused by anterior ischemic optic neuropathy (AION), branch retinal artery occlusion of superior vessels, or occipital cortex injury. The functional impact on reading and walking is significant — the schedule rates bilateral inferior loss at 30% (the same as bitemporal/homonymous hemianopia).
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.