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Table 5 Comparison of mean pupil size between two groups according to history of refractive surgery

From: Analysis of various factors affecting pupil size in patients with glaucoma

  Surgery history Number (eyes) Mean pupil size p-value
Refractive surgery in patients under 30 years of age yes 12 5.93 ± 1.12 0.856a
no 94 5.87 ± 1.13  
Cataract surgery in patients over 50 years of age yes 93 5.13 ± 1.27 0.004b
no 276 5.54 ± 1.11  
  1. a normality was confirmed, so an independent t-test was used
  2. b independent t-test