Central macular fixation developed at :: (A) 3 weeks, (B) 3 months, (C) 6 weeks, (D) 6 months
Answer is D. The critical period of developed of fixation reflex is 5-6 months of age.
This is the reason why unilateral cataracts in children should be operated early. Remember –
Binocular vision develops at 5-6 years.