Abstract
We report a case of a 52-year-old man with diminution of vision in both eyes at night for 15 days with mild retinal pigment epithelium changes at the macula and a tessellated background on fundus examination. Given his history of chronic alcohol consumption and jaundice two weeks back, vitamin A deficiency was contemplated. Electroretinogram (ERG) showed diminished responses. Serum retinol was 17 μg/dl. On supplementation with vitamin A, symptoms improved and ERG was normal; however, serum retinol levels were still low at 8.98 μg/dl. Thus, serum retinol does not necessarily indicate response to treatment, and ERG is necessitated in such cases.
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