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A 33-year-old male asked:

What is the definition or description of: night blindness?

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Dr. Richard Bensinger
Ophthalmology 52 years experience
Nyctalopia: Night blindness is technically termed nyctalopia. It refers to either slow adaptation to conditions of lowered light such as entering a darkened theater from outside sunlihgt, or to a condition of inability to see well at all at night which is common in conditions of inherited retinal degeneration.

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Last updated Jun 5, 2017

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