2.In group 2 including 26 cases, the zero disparity stereo acuity of normal person was 30.8%, the value of crossed disparity was abnormal, and the uncrossed disparity was not found.

• 第2组26例,近零视差立体视锐度正常者占308%25,其交叉视差立体感知度检测值不在正常范围,未见有非交叉视差者。