Which does not handle free radicals inside lens –
Correct Answer: Vitamin A
Description: Enzymatic antioxidant mechanisms :- Reduced glutathione (most important), glutathione peroxidase, superoxide dismutase, catalase.
Non-enzymatic defence mechanisms :- Vitamin C, Vitamin E, and possibly carotenoids.
Some textbooks have also mentioned vitamin A as an anti-oxidant in lens. But, the best answer here is vitamin A because all other options have been mentioned as anti-oxidants in all textbooks, while vitamin A has been mentioned only in some textbooks.
Category:
Ophthalmology
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now