屈光不正是视力不良最常见的原因。很大一部分病人,用光学矫正可以安全可靠地恢复有用和舒适的视觉。各种屈光学的检查,最后都归结为三个问题:是否需要戴镜?应选择什么样的镜片?矫正的效果将会如何?这是一个十分复杂的题目,本文的目的只在于:一、从生理学和光学的角度,谈谈配镜的适应证;二、提出一些个别的验光处方的指导方针;三、把合理的预后原则与主观愿望的猜测区别开来。 Ametropia is the most common cause of poor eyesight. A large proportion of patients, with optical correction, can safely and reliably restore useful and comfortable vision. All kinds of refractive examination, the final boils down to three questions: whether we need to wear glasses? Which lenses should be selected? Correction effect will be? This is a very complex topic, the purpose of this article is only: First, from Physiology and optics point of view, to talk about glasses of indications; Second, put forward some guidelines for optometry prescriptions; Third, the principle of reasonable prognosis and the subjective desire to make a distinction between.