Nyctalopia - Definition
nyctalopia
n 1: inability to see clearly in dim light; due to a deficiency
of vitamin A or to a retinal disorder [syn: nyctalopia,
night blindness, moon blindness]
n 1: inability to see clearly in dim light; due to a deficiency
of vitamin A or to a retinal disorder [syn: nyctalopia,
night blindness, moon blindness]