Bitemporal hemianopia caused by bilateral blepharoptosis.

A 49-year-old woman underwent Humphrey Visual Field (HVF) testing to evaluate a complaint of peripheral visual field loss. The HVF demonstrated a bitemporal hemianopia. Magnetic resonance imaging of the optic chiasm was normal. The visual field defect was shown to resolve on repeat testing after raising the upper eyelids with tape. Although rare, bitemporal hemianopic defects may be secondary to eyelid ptosis, especially when associated with lateral eyelid hooding.