Which of the following prevent lens opacity by free radical scavenging?: (A) Glutathione, (B) Catalase, (C) Vitamin A, (D) Vitamin E
Answer is A. Rediced glutathione is the most impoant anti-oxidant mechanism in lens. Ref: Yanoff ch.501; Biochemistry of Lens p.330; Parson 22nd/e p.261&20th/e p.248; Alder's Physiology 10th/e p.130.