Ocular toxicity of chloroquine among Thai patients

Abstract

The present study confirms the finding reported by Mackenzie (Am J Med 1983; 75 (Suppl 1A): 40-45) that retinopathy is not related to the duration of treatment and cumulative dose of chloroquine. Based on our finding that retinopathy can be detected as early as 9 months after starting chloroquine therapy, we recommend routine ophthalmic examination before treatment and every 6 months thereafter.