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Table 2 Best-corrected visual acuity in the surgical eye and the non-surgical eye prior to cataract surgery in groups A-C

From: Cost-utility of routine cataract surgery

   Group A (n = 87) Group B (n = 73) Group C (n = 59) Significance
Mean best corrected visual acuity in the surgical eye Snellen 0.19 (0.14) 0.17 (0.12) 0.24 (0.14)  
  LogMAR 0.98 (0.66) 0.94 (0.49) 0.76 (0.48) N.S.
Mean best corrected visual acuity in the non-surgical eye Snellen 0.58 (0.23) 0.28 (0.16) 0.63 (0.25)  
  LogMAR 0.29 (0.22) 0.65 (0.37) 0.25 (0.21) A vs B p < 0.001
B vs C p < 0.001
A vs C N.S.
  1. Values are means with standard deviations (SD) in parentheses expressed both as Snellen units as well as LOGarithm of Minimal Angle of Resolution (LogMAR) units. Group A = patients with only one eye operated; Group B = patients with both eyes operated during follow-up; Group C = patients who had had their first eye operated earlier and now the second eye was operated.