隱形眼鏡含水量與角膜水含量之關係 - 眼鏡

隱形眼鏡含水量與角膜水含量之關係
http://www.wretch.cc/blog/kramnik1/13700393




如下圖所示，縱軸為隱形眼鏡DK/t相對強度，橫軸為隱形眼鏡含水量(單位%)

http://www.wretch.cc/album/show.php?i=kramnik1&b=30&f=1054551176&p=3

可以看出隱形眼鏡含水量越高，DK/t值越高

亦可看出隱形眼鏡厚度越低，Dk/t值越高





如下圖所示

縱軸為角膜水含量相對強度，橫軸為隱形眼鏡含水量(單位%)

http://www.wretch.cc/album/show.php?i=kramnik1&b=30&f=1054551177&p=4

可以看出含水量越高，角膜水含量相對越低

亦可看出厚度越低，角膜含水量相對越低


參考資料：Diffusion of Na+ in silicon-containing hydrogel membrane

作者︰LI Xinming，CUI Yingde，YIN Guoqiang，JIA Zhenyu，LIAO Liewen

(Department of Chemistry and Chemical Engineering, Zhongkai University of
Agriculture and Technology, Guangzhou　510225, Guangdong, China)

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Φ(0,∞) = - j(supply)* {[DK(w)/l]+[DK(len)/t]}^(-1) + H(air)*ω < Φ(0)
由上式看出
當H(air)增加，Φ(0,∞)亦成線性關係增加

適當的增加週遭的溼度，例如放一杯水於週遭環境，可以減輕角膜脫水的現象

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相關論文:

Corneal Desiccation Staining With Thin High Water Content Contact Lenses

Orsborn, Gary N. OD, MS; Zantos, Steve G. BOptom, PhD

http://www.wretch.cc/blog/kramnik1/13700450



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