Study on Prism Degree and Prism Base Orientation Quality Measuring Method 棱镜眼镜棱镜度和棱镜基底取向检测方法的探讨
The prism effect produced by moving optical center of presbyopic glasses was put on the right and left lenses averagely by 1/ 2-1/ 3 degree of exophoria. 通过移动老视镜的光学中心的方法,产生三棱镜效应,按外隐斜度数的1/2~1/3给予三棱镜度,平均加在左右2眼。