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                                    ?

                                    隐形眼镜的含水量是什么意思?

                                    发布日期:2011-06-01

                                     隐形眼镜的一个很重要的参数就是含水量,隐形眼镜的含水量就是指镜片中水分的比例,含水量越高,则说明镜片所需要的水分更多!而高含水量通常会和高透氧性拉到一起,很多消费者认为含水量高则透氧性高,其实这个观点是错误的,通常含水量越高的隐形眼镜镜片透氧性更低,呈相反的趋势。

                                        很多戴隐形眼镜的人,有过眼睛容易发干的症状,看到有些隐形眼镜标着高含水量,就误以为能够解决眼睛干涩的情况,初戴起来眼睛看起来也确实水润水润,其实这只是表面的现象,隐形眼镜的高含水量指的是隐形眼镜本身所含的水分,而并非眼睛,含水量主要是为了保证隐形眼镜镜片的屈光度和外形,并不是说隐形眼镜的含水量高,人的眼睛含水分就更多,其实也是呈反的方向,镜片的含水量越高,意味着镜片的本身需要更多的水分补给,而这些水分就会从人的眼睛的泪液?#24418;?#25910;,最终导致眼睛比以前更加干涩。

                                        因为很多隐形眼镜?#25918;?#22312;宣传的时候往往会把含水量和透氧性连在一起,这也只是商业宣传的一个常规做法,并非含水量高透氧性就好,虽然说水?#21482;?#25658;带一定量的氧分,但是透氧性只跟镜片的制片工艺和材质有关。

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