At what age is binocularity established?
a. birth c. 6 months
b. 3 months d. 1 year
C
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A Incorrect. Binocularity (fixation of two ocular images into one cerebral picture, i.e., fusion) is established by 6 months of age, not by birth.
B Incorrect.Binocularity (fixation of two ocular images into one cerebral picture, i.e., fusion) is established by 6 months of age, not by 3 months of age.
C Correct. Binocularity (fixation of two ocular images into one cerebral picture, i.e., fusion) is established by 6 months of age,
D Incorrect. Binocularity (fixation of two ocular images into one cerebral picture, i.e., fusion) is established by 6 months of age, not by 1 year of age.
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