Methods The rondon-Dot stereogram and synoptophore were used to examine, the acuity threshold, fusion field and response speed of distant and near stereopsis in 102 subjects with normal aged vision.

• 方法 采用随机点立体图和同视机双项检测102例正常视力老年人远近立体视锐度阈值、立体融合范围及响应速度。