Definition of nyctalopia in English:
nyctalopia
noun ˌnɪktəˈləʊpɪəˌnɪktəˈloʊpiə
mass nounMedicine A condition characterized by an abnormal inability to see in dim light or at night, typically caused by vitamin A deficiency.
Example sentencesExamples
- Fundus examination is usually normal, distinguishing it from the progressive conditions causing nyctalopia.
- Ophthalmologists are occasionally confronted with an individual presenting with nyctalopia (ie, a relatively greater difficulty seeing at night).
- The insensitivity to dim stimuli is accompanied by a mild nyctalopia.
- About 90% of the female portion of the study suffer from Nyctalopia.
- The fact that an abnormal result occurs in 26%, however, suggests that ncytalopia should be evaluated with electrophysiological testing even when the fundi appear normal.
Origin
Late 17th century: via late Latin from Greek nuktalōps, from nux, nukt- 'night' + alaos 'blind' + ōps 'eye'.
Definition of nyctalopia in US English:
nyctalopia
nounˌniktəˈlōpēəˌnɪktəˈloʊpiə
Medicine The inability to see in dim light or at night.
Also called night blindness
Example sentencesExamples
- Ophthalmologists are occasionally confronted with an individual presenting with nyctalopia (ie, a relatively greater difficulty seeing at night).
- The insensitivity to dim stimuli is accompanied by a mild nyctalopia.
- Fundus examination is usually normal, distinguishing it from the progressive conditions causing nyctalopia.
- The fact that an abnormal result occurs in 26%, however, suggests that ncytalopia should be evaluated with electrophysiological testing even when the fundi appear normal.
- About 90% of the female portion of the study suffer from Nyctalopia.
Origin
Late 17th century: via late Latin from Greek nuktalōps, from nux, nukt- ‘night’ + alaos ‘blind’ + ōps ‘eye’.