An Etymological Dictionary of Astronomy and Astrophysics

A defect 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. Also called day blindness. Opposite of → nyctalopia

Etymology (EN): From N.L., from Gk hemeralop- (stem of hemeralops having such a condition, from hemer(a) “day” + al(aos) “blind”

• -ops having such an appearance) + -ia a noun suffix.

Etymology (PE): Ruzkuri, from ruz, → day, + kuri “blindness,” from kur, → blind.