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Kaplan-Meier survival curves with 95% confidence intervals comparing IOP lowering success of cataract surgery with iStent and cataract surgery without iStent in non-Caucasian subjects only. Univariate Cox proportional hazard model based hazard ratio was 0.59 (CI 0.13–2.54, p=0.48). CE = cataract extraction; CE-IS = cataract extraction with iStent. Numbers above X axis indicate the number of eyes at risk at each time point.
