CI = confidence interval; Dif = difference; FPR = first Purkinje reflex; Mean Dif., mean difference; PC = pupil center; SD, standard deviation. *Statistically significant.
The mean postoperative IOL center (IOLC) – FPR distance was 0,193±0088 mm in the PC group, whereas it was 0,159±0,068 mm in the FPR group, representing a statistically significant difference between the two capsulotomy groups (mean difference: 0.034±0.046 mm; 95% CI: 0.017 to 0.050; p<0.001). Likewise, a statistically significant difference (mean difference: 0.015±0.025 mm; 95% CI: 0.006 to 0.024; p<0.01) was also found between groups regarding the IOLC – OC (optical center of the cornea). Considering IOLC – PC (pupil center) distance, no statistically significant difference was found between PC and FPR capsulotomy centration (mean difference: 0.020±0.056 mm; 95%: 0.000 to 0.040; p=0.064) (Table 3). Figure 3 illustrates the difference in distance from IOL center to FPR between both eyes of the same patient, with a different capsulotomy centration per eye.