Observations on Hemeralopia, or Night Blindness
نویسنده
چکیده
منابع مشابه
Hemeralopia
and Nyctalopia as different clinical entities. Under ' Hemeraiopia ' (night blindness) he says ' The patients state that they see normally well during the day but during the evening must be led along in less well illuminated streets, etc.'. Under ' Nyctalopia' he _ says ' The symptom opposed to that of hemeraiopia is nyctalopia, i.e. that condition in which during the evening (in reduced illumi...
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THE primary aim of this study was to see whether structural changes occurred in the retinae of monkeys suffering from night blindness as a result of a deficiency of vitamin A induced in such a way that xerophthalmia would not complicate matters. In India, as elsewhere, night blindness is common as an isolated phenomenon for which there may be several causes in addition to that of vitamin A defi...
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Two distantly related, two- to three-year-old male Akita dogs developed partial or complete night blindness which progressed to day blindness. Clinical features were attenuated retinal blood vessels, diffuse exaggerated tapetal reflex, and hyperreflective horizontal lines in the tapetal fundus. The principal histologic change was regional photoreceptor cell degeneration. Areas of moderately atr...
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So far as the eye is concerned, the clinical picture varies from a mild conjunctival epithelial xerosis, sometimes with hemeralopia, to an advanced state of keratomalacia and necrosis of the cornea, with its attendant tendency to hypopyon ulcers and panophthalmitis. So far as the general condition is concerned, the clinical picture varies from one of very little disturbance to extreme debility,...
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BACKGROUND Gyrate atrophy of the retina and choroid is a rare autosomal recessive inherited disease, characterized by progressive chorioretinal atrophy that results in progressive deterioration of peripheral and night vision and leading to blindness. CASE PRESENTATION This report presents a case of a 28-year-old man consulting for a progressive fall of visual acuity with hemeralopia. Eye fund...
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