Which of the following doesn't handle free radical in lens? (AIPG 2007)
a. Protection against damage by free radicals is achieved in a no of ways in the lens
b. The super oxide anion undergoes dismutation by super oxide dismutase or interaction with ascorbate which results in formation of H2O2. This is detoxified by glutathione peroxidase and catalase
c. Ascorbic acid appears to playa major role in the antioxidant system in the lens.
d. A low level of α-tocopherol and β carotene are also present in aqueous humor.