弱视眼的对比敏感度

Contrast sensitivity in amblyopia

The contrast sensitivity function for sinusoid gratings of various spatial frequencies was determined for both eyes of 21 cases with unilateral amblyopia. The CSF of all amblyopic eyes except one was reduced in comparison with the non-amblyopic eye of the same person. The CS curve was depressed, especially with the middle and high spatial frequencies. The cut-off high frequency shifted toward to the left, as was the peak sensitivity. The changes in CSF with respect to different degrees of amblyopia, and the possible errors that could be made during the examination were also discussed.