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Incidence of severe microbial keratitis reported by lens type and mode of wear. Incidence per 10,000 wearers with 95% confidence intervals. RGP = rigid gas permeable (corneal); HG = hydrogel; SiH = silicone hydrogel; DD = daily disposable; DW = daily wear; O/N = overnight wear; EW = extended wear; Occ = occasional. Data based on findings from Stapleton et al 2008.3
