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. 2021 Aug 10;36(9):1804–1809. doi: 10.1038/s41433-021-01716-6

Table 2.

Visual acuity for all eyes and by ocular copathology preoperatively (n = 100), first (94 eyes) and final postoperative visit (77 eyes).

Preoperative CDVA First postoperative CDVA Final postoperative CDVA P value (Friedman test)
Eyes without ocular copathology (n = 61)
  Mean (SD) 0.40 (0.34) 0.17 (0.16) 0.09 (0.17) <0.0001
  Median (IQR) 0.30 (0.22, 0.56) 0.20 (0.02, 0.26) 0.04 (−0.04, 0.20)
Eyes with ocular copathology (n = 39)
  Mean (SD) 0.72 (0.52) 0.31 (0.48) 0.28 (0.36) <0.0001
  Median (IQR) 0.56 (0.30, 1.00) 0.20 (0.06, 0.30) 0.22 (0.00, 0.33)
Total (n = 100)
  Mean (SD) 0.52 (0.45) 0.23 (0.33) 0.17 (0.27) <0.0001
  Median (IQR) 0.49 (0.24, 0.76) 0.20 (0.04, 0.30) 0.14 (0.00, 0.30)

Preoperative best-corrected distance visual acuity (CDVA) was considered the better of uncorrected distance visual acuity (UCVA) or CDVA within three months prior to surgery. Postoperative visual acuity was considered CDVA when present, and the better of UCVA or pinhole visual acuity when CDVA was not recorded.

Abbreviations: CDVA best corrected distance visual acuity, UCVA uncorrected distance visual acuity, SD standard deviation, IQR interquartile range.