All of the following are causes of night blindness EXCEPT:: (A) Oguchi's disease, (B) Vitamin A deficiency, (C) High myopia, (D) Devics disease
Answer is D. Causes of night blindness or nyctalopia: Vitamin A deficiency Tapetoretinal degenerations like retinitis pigmentosa Congenital high myopia Familial congenital night blindness Oguchi's disease Lenticular or corneal opacities Advanced primary open angle glaucoma