Normal level of visual acuity is attained at which age: (A) 6 months, (B) 1 year, (C) 3 years, (D) 6 years
Answer is C. In clinical practice, measurement of the threshold of discrimination of two spatially-separated targets (a function of the fovea centralis) is termed visual acuity Visual acuity recorded by Snellen&;s test cha is a measure of the form sense Reference : A K KHURANA Comorehensive Ophtalmology edition 4,page-16