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. 2020 May 6;20:187. doi: 10.1186/s12886-020-01456-3

Table 3.

P-SIA calculated using Holladay-Cravy-Koch method

Parameters Outcomes
Mean ± SD (D) 0.34 ± 0.20
95% CI (D) 0.29,0.39
Minimum, Maximum (D) 0.00,0.70
 <0.5 D (N/%) 44 (73.3%)
 ≥0.5 D and<1.0 D (N/%) 16 (26.7%)
 ≥1.0 D (N/%) 0 (0.0%)

CI confidence interval, SD standard deviation, P-SIA surgically induced astigmatism on the posterior corneal, D diopters