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Definition of Moon blindness
1. Noun. Inability to see clearly in dim light; due to a deficiency of vitamin A or to a retinal disorder.
Exact synonyms: Night Blindness, Nyctalopia
Generic synonyms: Avitaminosis, Hypovitaminosis, Vision Defect, Visual Defect, Visual Disorder, Visual Impairment
Generic synonyms: Avitaminosis, Hypovitaminosis, Vision Defect, Visual Defect, Visual Disorder, Visual Impairment
2. Noun. Recurrent eye inflammation in horses; sometimes resulting in blindness.
Medical Definition of Moon blindness
1. An acute iridocyclitis of horses, involving one or both eyes; it subsides only to recur at intervals of varying length and usually ends in blindness; the cause is uncertain but some have associated it with leptospires; does not appear to be contagious. Synonym: moon blindness. (05 Mar 2000)