对比敏感度检测方法及其在弱视诊疗中的应用

Contrast sensitivity detection method and its application in amblyopia diagnosis and treatment

弱视是视觉发育期常见的视觉中枢发育异常,对比敏感度与弱视的发病机制和诊疗密切相关,能更全面地反映弱视的视功能损害。基于对比敏感度的弱视治疗方法也为弱视治疗提供新的思路。对比敏感度检测方法从条栅图、字母表法到现在基于电子计算机的对比敏感度测试,在视功能检测中愈发高效;基于对比敏感度的弱视治疗方法也从早期的CAM视觉刺激,到如今的各类知觉学习,手段向更为个体化的方向发展。

Amblyopia is a developmental abnormality that is a consequence of abnormal visual experience early in life. Contrast sensitivity function ( CSF) plays an important role in diagnosis and treatment of amblyopia. It has been suggested that the CSF characterizes amblyopia' s spatial vision deficits better than letter acuity does. From grating charts and letter charts to computer-based testing, as the research moves along, CSF measurements have been developed with high efficiency. Amblyopia therapies based on CSF have come a long way from circular activate machine ( CAM) to perceptual learning.