nyctalopia

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nyctalopia

 [nik″tah-lo´pe-ah]
2. sometimes incorrectly used as a synonym for hemeralopia.

nyc·ta·lo·pi·a

(nik-tă-lō'pē-ă),
Decreased ability to see in reduced illumination. Seen in patients with impaired rod function; often associated with a deficiency of vitamin A.
[nyct- + G. alaos, obscure, + ōps, eye]

nyctalopia

(nĭk′tə-lō′pē-ə)
nyc′ta·lo′pic (-lō′pĭk, -lŏp′ĭk) adj.

nyc·ta·lo·pi·a

(nik'tă-lō'pē-ă)
Decreased ability to see in reduced illumination. Seen in patients with impaired rod function; often associated with a deficiency of vitamin A.
Synonym(s): night blindness.
[nyct- + G. alaos, obscure, + ōps, eye]

nyctalopia

Inability to see well in conditions of poor illumination. NIGHT BLINDNESS. From the Greek nyktos, night, alaos, blind and ops, the eye.

hemeralopia

Term used to mean either night blindness in which there is a partial or total inability to see in the dark associated with a loss of rod function or vitamin A deficiency; or day blindness in which there is reduced vision in daylight while vision is normal in the dark. Syn. nyctalopia (this term is only synonymous with night blindness); night sight (this term is only synonymous with day blindness). See girate atrophy; congenital stationary night blindness; choroideremia; Oguchi's disease; retinitis pigmentosa.
References in periodicals archive ?
But last night blind Harvey was back home with Jordan, real name Katie Price, and her fiance Peter Andre.
Completing the cabinets is an integral night blind design to keep the fridge cool while not in use and saving energy.