The role of funduscopy and fundus photography in strabismus diagnosis.

Fundus photographs taken in 66 patients with vertical strabismus were analyzed in a blind study with respect to ocular torsion. The objective presence or absence of ocular torsion was then correlated with the patient's clinical diagnosis. The presence or absence of objective ocular torsion as seen in fundus photographs had a sensitivity of 0.86 and a specificity of 0.96 for diagnosing the presence of oblique dysfunction, and a sensitivity of 0.96 and specificity of 0.83 for diagnosing the presence of normal oblique function.