After correcting nearsightedness and farsightedness , the changing curve of near point and far point for eyes is given .
论述了近视与远视矫正后,人眼近点与远点的相应改变,给出了变化曲线;
The surgery can be used to correct different types of visions defects like nearsightedness , farsightedness , presbyopia and astigmatism among others .
手术可用于不同类型的正确的看法缺陷像近视,远视,老花眼和散光等。
LASIK surgery uses small laser cuts to reshape the surface of the cornea , eliminating farsightedness or nearsightedness , and the need for glasses or contacts .
LASIK手术使用小的激光切口对角膜重新塑形,消除远视或近视,使人们不在需要镜框眼镜或接触镜。
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 .