Hemeralopia (?), n. [NL., fr. Gr. &unr_;, the opposite of &unr_;; &unr_; day + &unr_; of &unr_;. See Nyctalopia.] (Med.) A disease of the eyes, in consequence of which a person can see clearly or without pain only by daylight or a strong artificial light; day sight.
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&hand_; Some writers (as Quain) use the word in the opposite sense, i. e., day blindness. See Nyctalopia.
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