The principle and method of astigmatism correction were analyzed in detail, and the initial parameter computing was programed.
具体分析了像差校正的原理和方法，编制了初始结构快速计算程序。
A discussion is given of the method of determining the position of the focal point when the measured lens is with primary astigmatism. The measuring results are also included.
被测物镜有初级象散时确定焦点位置的方法，并给出了测量结果。
This method, can wash eyes of harmful substances and dirt, and also for mild cataract effectively, and can improve, farsightedness, astigmatism myopic lasik corruptive degree.
此法，能洗去眼中的有害物质和灰尘，还对轻度白内障有效，并能改善散光、远视、近视的屈光不正程度。
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