Moon blindness

noun

Definitions

Noun
  1. 1
    A chronic equine inflammatory eye disease. uncountable
  2. 2
    recurrent eye inflammation in horses; sometimes resulting in blindness wordnet
  3. 3
    The optical condition of night blindness: reduced eyesight in faint light. uncountable

    "The cavalry messenger dismounted after his moon blindness made it unsafe to ride on through the wilderness."

  4. 4
    inability to see clearly in dim light; due to a deficiency of vitamin A or to a retinal disorder wordnet

Etymology

Once believed to be caused by exposure of the eyes to moonlight during sleep.

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