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

/nyc·ta·lo·pia/ (nik″tah-lo´pe-ah)
2. in French (and incorrectly in English), day blindness.

nyctalopia

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

nyctalopia

[nik′təlō′pē·ə]
Etymology: Gk, nyx, night, alaos, obscure, ops, eye
poor vision at night or in dim light resulting from decreased synthesis of rhodopsin, vitamin A deficiency, retinal degeneration, or a congenital defect. Also called day sight, night blindness. nyctalopic, 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.

nyctalopia (nikˈ·t·lōˑ·pē·),

n reduction in the ability to see in faint light, as at night, due to con-genital defects, vitamin A deficiency, decreased rhodopsin synthesis, or degeneration of the retina. Also called
night blindness or
day sight.

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.

nyctalopia

night blindness.
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