Contrast sensitivity(CS)is regarded as one of the most comprehensive index to measure human spatial vision recently, which can completely and accurately reveal the patients' visual function, and provide an important reference basis for the early diagnosis,disease progression and efficacy evaluation of ophthalmopathy. Studies have found that the damage mechanism of CS is different in different ophthalmopathy, and the influence degree to each spatial frequency area is also slightly different. Therefore, this article reviews the research of CS detection in eye diseases.