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二、屈光不正(一)什么叫屈光不正上面已经讨论过,当眼之屈光系统处于绝对静止状态(即不使用调节),由远距离目标投射来的光线,可被屈折结成焦点于網膜黄斑之上,这样屈光状态的眼,叫做正视。同样,我们也可以说在眼之屈光系统处于绝对静止状态,由远距离目标投射来的光线虽被屈折结成焦点,但不能恰好落在網膜黄斑之上(或在黄斑平面之前,或在其后),这样的屈光状态,不可能使網膜黄斑获得清楚的焦点像。
Second, refractive errors (A) What is refractive error has been discussed above, when the eye refraction system is at an absolute resting state (that is, without the use of regulation), the light projected from a long-range target, can be inflected into focus Above the macula, this eye of refraction is called face-up. Similarly, we can also say that the refractive system in the eye is at an absolute standstill, although the light projected by long-range targets is refocused to focus but can not just fall on the macula (or in front of the macular plane or in Then), such a refractive state, it is impossible to make clear macular macular focus like.