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Useful studies of SH lenses

Lenses
The April issue of the US journal Optometry and Vision Science contained several interesting papers

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In a featured paper published free online (www.optvissci.com), Szczotka-Flynn and Diaz1 of the Case Western Reserve University in Cleveland, Ohio, review their findings from a meta-analysis of 23 studies, to evaluate the risks of corneal inflammatory events (CIEs) in users of SH and low-Dk hydrogel extended wear.

Their search included online databases, unpublished meeting abstracts and other cited references presented or published between 1990 and February 2006. A total of 9,336 subjects and 18,537 eyes comprised the sample. Follow-up ranged from four to 36 months, with a median of 12 months.

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