Is There a Place for Contrast Sensitivity Function Testing in the Strabismus Exam?

Abstract

CSF is a measure of the visual system's ability to distinguish objects against their backgrounds. As a measure of visual function rather than binocular sensory function, more research on CSF loss has been done in the area of amblyopia than in other aspects of strabismus. Although amblyopia therapy improves both visual acuity and CSF, it has been shown that CSF remains subnormal even when the acuity reaches 20/20. CSF testing is time-consuming and unreliable in very young children and offers no advantage in either the diagnosis or treatment of amblyopia.

• contrast sensitivity function
• CSF
• amblyopia
• strabismus