During a physical examination, suspected strabismus; which test should be used to gather additional data?

During a physical examination, suspected strabismus; which test should be used to gather additional data?

• A. Confrontation test
• B. Symmetry of palpebral fissures
• C. Corneal light reflex
• D. Accommodation test

Answer: (C)

The corneal light reflex is the best choice when strabismus is suspected because it directly shows whether the eyes are aligned. Shine a light toward the eyes and observe the reflections on the corneas. When the eyes are properly aligned, the reflections fall in the same spot on each cornea. If there’s misalignment, the reflections won’t be symmetric or centered, revealing the presence of strabismus. This quick, objective screen often guides whether further testing, like a cover-uncover test, is needed to measure the deviation. Other tests look at different things: the confrontation test checks peripheral vision, symmetry of palpebral fissures assesses facial or eyelid symmetry rather than eye alignment, and the accommodation test evaluates focusing ability, not alignment.

The corneal light reflex is the best choice when strabismus is suspected because it directly shows whether the eyes are aligned. Shine a light toward the eyes and observe the reflections on the corneas. When the eyes are properly aligned, the reflections fall in the same spot on each cornea. If there’s misalignment, the reflections won’t be symmetric or centered, revealing the presence of strabismus. This quick, objective screen often guides whether further testing, like a cover-uncover test, is needed to measure the deviation.

Other tests look at different things: the confrontation test checks peripheral vision, symmetry of palpebral fissures assesses facial or eyelid symmetry rather than eye alignment, and the accommodation test evaluates focusing ability, not alignment.