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混合性散光其检影方法目前主要是利用两球镜或一球镜一柱镜,但这两种方法对混合性散光尤高屈光度患者检影时有一定的困难,往往难以获得准确的屈光度。我们体会,用两柱镜检影验光法准确度高,操作简便。现将操作方法及注意事项介绍如下:操作方法1.先找出患眼两个主径线的轴位。我们采用1m距离检影,一般情况下顺动光带比较亮,界线清,易辨认,轴位易判定。确定了一个轴位则另一轴位也即确定。有时由于屈光度较高或其它原因轴位不易判定时,可以向前移动到一臂距离(对观察影动较有
Mixed astigmatism its retinoscopy method is mainly the use of two-ball mirror or a spherical mirror of a cylinder, but these two methods for mixed astigmatism in patients with high refraction have some difficulties when retinoscopy, often difficult to obtain accurate refraction. We understand that with two-cylinder retinoscopy retinoscopy high accuracy, easy to operate. Now the method of operation and precautions are described below: How to operate 1. First find out the axis of the two major diameter of the affected eye. We use 1m distance retinoscopy, under normal circumstances along the moving light with bright, clear boundaries, easy to identify, easy to determine the axial position. Determine the position of another axis is also determined. Sometimes due to high refraction or other reasons difficult to determine the axial position, you can move forward to the arm distance (more eye shadow movement