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方法:首先除外眼病及屈光异常,在此基础上再进行老视镜片的选择,所谓“两点法”,就是利用病人戴镜后寻找阅读最清晰点和近点进行镜片选择的方法,此法可不用近视力表,用小号字报即可,再用50cm一把长直尺,先遮挡一眼,根据病人年龄和屈光状态将估计需要的镜片置于被检前,先让病人自己通过改变眼与纸面的距离寻找阅读眼最清晰点,然后再让病人缩小眼与纸面的距离,寻找近点,我们把近点规定在20cm±2cm处,最清晰点规定在28cm±2cm外,如所选镜片最清晰点超过30cm,近点超过22cm,说明选择的镜度偏小;相
Methods: First of all, except eye disease and refractive abnormalities, on the basis of the choice of presbyopic lenses, the so-called “two-point method” is the use of the patient wearing glasses to find the clearest point of reading and lens selection approach Law can not near vision table, with small size poster can be, and then a long ruler 50cm, the first block one, according to the patient’s age and refractive status of the lens needs to be placed before being seized, let the patient himself By changing the distance between the eye and the paper to find the clearest point of reading the eye, and then let the patient narrow the distance between the eye and the paper, looking for the near point, we set the near point at 20cm ± 2cm, the clearest point in 28cm ± 2cm In addition, if the selected lens is the clearest point of more than 30cm, nearly 22cm, indicating that the choice of mirror is small; phase