moon blindness

Noun	1.	moon blindness - inability to see clearly in dim light; due to a deficiency of vitamin A or to a retinal disorder Synonyms: night blindness, nyctalopia
	2.	moon blindness - recurrent eye inflammation in horses; sometimes resulting in blindness Synonyms: mooneye

avitaminosis, hypovitaminosis, night blindness, nyctalopia, vision defect, visual defect, visual disorder, visual impairment