Night-blindness meaning

A condition of the eyes in which vision is normal in daylight or other strong light but is abnormally weak or completely lost at night or in dim light. The condition may result from vitamin A deficiency, disease, or hereditary factors.
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Imperfect vision in the dark or in dim light: a symptom of vitamin A deficiency.
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A condition of the eyes in which vision is normal in daylight or other strong light but is abnormally weak or completely lost at night or in dim light. The condition may result from vitamin A deficiency, disease, or hereditary factors.
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The optic condition nyctalopia, the inability to see clearly in faint light, as at night.
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