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Intraocular pressure measurements. The mean intraocular pressure across all measured eyes was 10.9 mm Hg ± 1.9 SD (n = 1082). Male eye IOP (mean, 10.9; n = 436) and female eye IOP (mean, 10.8; n = 646) were indistinguishable. The mean IOP of left and right eyes of each sex is shown on the graph. Error bars represent standard deviation. N represents the number of eyes.
