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2014年1月15日—Oxygenpermeabilityandwatercontentofsiliconehydrogelcontactlensmaterials.OptometryandVisionScience2007;84:328-37.11.Benjamin ...

Some of these corneal alterations are transient, such as endothelial blebs, edema, limbal injection, myopic creep, epithelial microcysts and epithelial thinning.1-5

Although these conditions tend to be reversible, they each resolve at differing rates. Examples of non-reversible complications include corneal vascularization, polymegethism and pleomorphism.6

Silicone hydrogel (SH) lenses, introduced in the late 1990s, were designed to decrease the risks of hypoxia-related complications.

In 2001, Covey et al. determined that SH wear actually had the same physiological effects as not wearing a lens at all.7 A recent literature review suggests that SH materials have effec...