Case of Nyctalopia — Idiopathic

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Nyctalopia in India

Sir,?Though it is a rare disease in Europe, nyctalopia is not so uncommon in the tropics. There are two varieties of night-blindness?one symptomatic and the other idiopathic. The etiology of the disease is very obscure, and much more varied and uncertain is its treatment too. Dr. Tweedy says that " the prognosis of the symptomatic night-blindness is generally unfavourable ; while that of the id...

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INTRODUCTION Ophthalmologists are occasionally confronted with an individual presenting with nyctalopia (i.e., a relatively greater difficulty seeing at night). When there is no accompanying abnormality seen in the fundus, visual electrophysiology becomes useful as an objective means of assessing rod (scotopic) photoreceptor function or pathway defects. MATERIALS AND METHODS A retrospective s...

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ژورنال

عنوان ژورنال: The Boston Medical and Surgical Journal

سال: 1835

ISSN: 0096-6762,1533-4406

DOI: 10.1056/nejm183502180120204