An Etymological Dictionary of Astronomy and Astrophysics

Same as → night blindness; opposite of → hemeralopia.

Etymology (EN): L.L. nyctalopia, from Gk. nukt, → night + al(aos) “blind” + -opia, akin to ope “view, look,” ops “eye.”

Etymology (PE): Šabkuri, from šab, → night, + kuri “blindness,” from kur, → blind.