论文部分内容阅读
普通眼镜验光后所得的度数不能直接用作隐形眼镜的度数,这是因为普通眼镜片的后顶点与眼角膜前极部的距离大约为12～15mm,而隐形眼镜的后顶点与眼角膜前极部几乎是重合在一起。为了计算方便,眼镜界和医学界在进行框架眼镜与隐形眼镜的度数换算时,通常把普通眼镜片的后顶点与眼角膜前极部的距离规定为12mm。
Ordinary glasses optometry degree can not be directly used as the degree of contact lenses, this is because the general ophthalmic lens posterior apex and the distance between the anterior cornea is about 12 ~ 15mm, while the contact lens posterior vertex and corneal anterior pole The ministries are almost coincidental. In order to facilitate the calculation, the glasses industry and the medical profession in the frame glasses and contact lenses when the degree conversion, usually after the general ophthalmic lens apex and the distance between the anterior cornea stipulates 12mm.