Iris Atrophy After Quinine Amblyopia

The ocular manifestations of a toxic reaction to systemic quinine therapy have been recorded in over 230 articles in the world's medical literature.1These ocular complications occur primarily in the posterior eye,1,2yet anterior complications have been observed on one occasion.3This report describes the details of two additional cases of severe iris pigment atrophy with pupil abnormalities following quinine amblyopia. Stölting in 1903 reported for the first time the findings in a patient who developed iris atrophy after quinine amblyopia.3The patient, a 17-year-old boy who had had a lung infection for five weeks, was thought to have taken 3 gm of quinine for several days of his illness. Soon thereafter he lost all vision. Five days later, when first seen by Stölting, bare light perception had returned, the optic nerve head was pale, and the retinal arteries narrow. The vision slowly returned, visual fields