Nyctalopia: the sequelae of hypovitaminosis A.

We present a case of night blindness due to vitamin A deficiency in a gentleman who had previously undergone a pancreaticoduodenostomy 10 years ago. The deficiency was attributed self-cessation of his pancreatic supplements without being aware of the possible consequences. The diagnosis and management of this patient is presented here, along with a discussion of similar cases in the literature.