Which explains the importance of detecting strabismus in young children?
a. Color vision deficit may result.
b. Amblyopia, a type of blindness, may result.
c. Epicanthal folds may develop in the affected eye.
d. Corneal light reflexes may fall symmetrically within each pupil.
ANS: B
By the age of 3 to 4 months, infants are able to fixate on one visual field with both eyes simultaneously. In strabismus, or cross-eye, one eye deviates from the point of fixation. If misalignment is constant, the weak eye becomes "lazy," and the brain eventually suppresses the image produced from that eye. If strabismus is not detected and corrected by age 4 to 6 years, blindness from disuse, known as amblyopia, may occur. Color vision is not the only concern. Epicanthal folds are not related to amblyopia. In children with strabismus, the corneal light reflex will not be symmetric for each eye.
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