hemeralopia

American  

[hem-er-uh-loh-pee-uh] / ˌhɛm ər əˈloʊ pi ə /

noun

Ophthalmology.

1. a condition of the eyes in which sight is normal in the night or in a dim light but is abnormally poor or wholly absent in the day or in a bright light.

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hemeralopia British  

/ ˌhɛmərəˈlɒpɪk, ˌhɛmərəˈləʊpɪə /

noun

1. Nontechnical name: day blindness.  inability to see clearly in bright light Compare nyctalopia

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Other Word Forms

• hemeralopic adjective

Etymology

Origin of hemeralopia

1700–10; < New Latin < Greek hēmeralōp- (stem of hēmerálōps having such a condition ( hēmer ( a ) day + al ( aós ) blind + -ōps having such an appearance) + -ia -ia; -opia

Example Sentences

Six patients examined belonged to five different families, all consisting of five or six children, one-third of whom had hemeralopia.

From Degeneracy Its Causes, Signs and Results by Talbot, Eugene S.

Within a few days after our departure from Galle, several severe cases occurred of hemeralopia, chiefly among members of the ship's band.

From Narrative of the Circumnavigation of the Globe by the Austrian Frigate Novara, Volume I (Commodore B. Von Wullerstorf-Urbair,) Undertaken by Order of the Imperial Government in the Years 1857, 1858, & 1859, Under the Immediate Auspices of His I. and R. Highness the Archduke Ferdinand Maximilian, Commander-In-Chief of the Austrian Navy. by Scherzer, Karl Ritter von