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无论是检影验光,还是插片验光法,经常会遇到多个透镜联合,常见的不外乎球球透镜联合、球柱透镜联合、柱柱透镜联合等几种方式。掌握透镜联合法成为验光后开出合格眼镜处方的步骤之一。现结合笔者十余年经验,推荐一种快速的换算方法,供大家参考。 透镜联合方式中常见有两种情况需要经过公式换算:同号不同轴柱柱透镜联合;不同号球柱透镜联合。对于前一种方式,按照“低柱镜度数换算成球镜度数,高低柱镜度数之差为柱镜度数,轴取高度数
Whether it is retinoscopy optometry, or optometry optometry, often encounter multiple lenses combined, the common nothing more than ball-lens combination, spherical lens combination, column lens combination and several other ways. Grasp the lens joint law to optometry out of qualified glasses one of the steps. Now combined with the author more than ten years experience, recommend a fast conversion method for your reference. Lens joint mode common in two cases need to go through the formula conversion: the same number of different axis cylinder lens combination; different number ball lens combination. For the former method, according to the "low cylinder power converted into spherical power, the difference between the level of the cylinder power is the cylinder power, the shaft height