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近年来,市场上掀起一股用针孔镜防治近视眼的热潮,一些家长贸然信之,买来给孩子截上。结果戴上针孔镜视力虽然好得多,但摘下后却依然如故。这是为什么呢? 人们大都有这样的体验:把眼睛眯逢起来.或者通过一个小孔看东西,会更加清晰。这并不是小孔有什么魔力,而是因为小孔限制了射入眼球的光线,减少了来自四面八方的不规则光线的干扰。从而避免了角膜、晶状体的曲面造成
In recent years, the market set off a surge of pin-hole mirror myopia prevention and control, some parents rush to believe it, bought to the children cut off. Results Although wearing a pinhole mirror vision is much better, but still after the removal of the same. Why is this? Most people have such an experience: the eyes narrowed together, or through a small hole to see things, will be more clear. This is not the magic of the hole, but because the hole limits the light into the eye, reducing the interference of irregular light from all directions. Thus avoiding the cornea, the lens caused by the surface