作者选择105名45岁以上、眼压3次或3次以上大于21mmHg、视野正常、开角、无其他眼病、视野异常之前做过眼底立体照像并随诊达5年的人进行研究。把病人分为两组,第一组为27名在5年研究期间一眼或两眼发生青光眼视野缺损之病人,第二组为75名在5年研究期间双眼无视野缺损者。用彩色立体摄影的方法根据颜色和轮廓把视盘水平径及垂直径的C/D比率进行分 The authors selected 105 45 years of age or older, intraocular pressure 3 times or more than 3 times greater than 21mmHg, normal vision, open angle, no other eye disease, abnormal vision done before three-dimensional fundus photography and follow-up for up to 5 years of people to study. Patients were divided into two groups. The first group consisted of 27 patients with glaucomatous visual field defect in one or two eyes during the 5-year study period, and the second group consisted of 75 patients with no visual field defect in both eyes during the 5-year study. Color stereography method according to the color and outline of the disc diameter and vertical diameter of the C / D ratio points