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. 2011 Jul 15;25(10):1327–1332. doi: 10.1038/eye.2011.168

Table 4. Changes in surgically induced astigmatism (SIA) (Diopter) at each postoperative period.

  Toric IOL group Non-toric IOL group P-valuea
Postoperative
 1 week 1.05±0.32 1.09±0.25 0.624
 1 month 0.64±0.23 0.63±0.19 0.838
 3 months 0.32±0.17 0.31±0.20 0.935
 6 months 0.26±0.19 0.27±0.15 0.653

Abbreviation: SIA, surgically induced astigmatism calculated by rectangular coordinate method using the Holladay-Cravy-Koch formula.

a

Comparison of toric IOL group and non-toric IOL group with regards to SIA by Mann-Whitney U-test.

Values are presented as mean±SD.