The correct option is
D) Three years
Step-by-step explanation:
Visual acuity (VA) commonly refers to the clarity of vision. Stereoscopic vision and depth perception testing is important in identifying diseases such as Amblyopia, Strabismus, Suppression and Stereopsis Amblyopia is a condition that emerges when a child’s visual system does not develop properly, resulting in abnormal vision in 1 or both eyes. These conditions occur in children aging from 3 to 6 years of age and older.