nyctalopia

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nyc·ta·lo·pi·a

 (nĭk′tə-lō′pē-ə)
[Late Latin nyctalōpia, from Greek nuktalōps, night-blind : nux, nukt-, night; see nekw-t- in Indo-European roots + alaos, blind + ōps, ōp-, eye; see okw- in Indo-European roots.]

nyc′ta·lo′pic (-lō′pĭk, -lŏp′ĭk) adj.

nyctalopia

(ˌnɪktəˈləʊpɪə)
n
(Pathology) inability to see normally in dim light. Nontechnical name: night blindness Compare hemeralopia
[C17: via Late Latin from Greek nuktálōps, from nux night + alaos blind + ōps eye]

night′ blind`ness


n.
a condition in which vision is normal in daylight but abnormally poor in dim light.
[1745–55]
night′blind`, adj.

nyctalopia

a condition of the eyes in which the sufferer can see clearly during the day or in bright light but has impaired vision at night or in poor light; night blindness.
See also: Eyes
night-blindness.
See also: Night
the loss of sight in darkness. — nyctalopic, adj.
See also: Blindness

nyctalopia

(night blindness) The inability to see well in dim light.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.nyctalopia - inability to see clearly in dim light; due to a deficiency of vitamin A or to a retinal disorder
avitaminosis, hypovitaminosis - any of several diseases caused by deficiency of one or more vitamins
vision defect, visual defect, visual disorder, visual impairment - impairment of the sense of sight
Translations

nyc·ta·lo·pi·a

n. nictalopía, visión imperfecta bajo iluminación baja.
References in periodicals archive ?
Nightblindness or 'matang-manok' continues to plague Filipino families which is caused by malnutrition, a press release from Food Nutrition Research Institute said.
Hallmark symptoms of RP are nightblindness and visual field constriction.
Prevalence of vitamin A deficiency in Bangladeshi population Deficiency Population-size Gender Age (Number) Night blindness 27,574 Male/Female 6-59 months Bitot's spot 27,574 Male/Female 6-59 months Corneal xerosis 27,574 Male/Female 6-59 months Xerophthalmia 27,574 Male/Female 6-59 months Nightblindness 6,827 F 15-49 years Nightblindness 2,461 F * 15-49 years Nightblindness 14,381 F ([dagger]) 15-49 years Deficiency Percentage Night blindness 0.
85) An evaluation study of the Family Planning Association of Bangladesh (FPAB) reported that adolescents and youth, married and unmarried, are not knowledgeable about the following: the underlying cause of menstruation, the consequences of unprotected sexual acts, how a person is infected with HIV/AIDS, menstrual regulation, gonorrhoea, syphilis, causes of nightblindness, and the availability of treatment facilities for sexually transmitted infections.
There has been a dramatic reduction in the prevalence of nightblindness among preschool children from the 1980s to 2004, which is attributed to the successful programme of vitamin A supplementation launched in 1973 (Fig.
Any history of nightblindness (XN stage) was obtained by interviewing the mothers of children using a vernacular term.
The socioeconomic status, history of nightblindness, and nutritional status were comparable between the groups.
Supplementation of vitamin A has been shown to protect against clinical vitamin A deficiency, as indicated by nightblindness, among preschool children in Bangladesh (16).
Nightblindness and vitamin A deficiency in children attending a diarrheal disease hospital in Bangladesh.
The measures currently recommended for the prevention and treatment of gestational vitamin A deficiency and nightblindness are based on supplementation, food enrichment with vitamin A, and alimentary diversification (4,8,9), always considering the ingestion amount safe for each biological moment (10).