hemeralopia definition

  • noun:
    • A visual defect characterized by the inability to see as plainly in bright light as with dim light.
    • The inability to see clearly in bright light; day-blindness
    • A disease of eyes, in result of which an individual can see plainly or without discomfort just by sunlight or a stronger artificial light; day sight.
    • In pathology, a defect of sight in consequence of which distinct sight is possible only in synthetic or dim light; day-blindness. The word can also be made use of, however, to convey the opposing problem of vision. See nyctalopia.
    • failure to see clearly in brilliant light

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