1. nyctalopia

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


  • night blindness
  • avitaminosis
  • visual impairment
  • visual disorder
  • visual defect
  • moon blindness
  • hypovitaminosis

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Sentences with nyctalopia

1. Noun, singular or mass
This can lead to night blindness (nyctalopia), which is poor vision in low lighting or at night.