Sample size calculation
IOL
The parameters used to estimate our sample size were power of 0.8, alpha error probability of 0.05, allocation ratio of 1:1, and an a priori difference effect on the score for skills for insertion of a four-point scleral fixation of an Akreos® IOL using GoreTEX® sutures (scaled developed for this study) of a Cohen’s d of 0.5 (a medium effect size). Under such input parameter, our sample size is 132 participants (66 vs. 66). Sample size was conducted using GPower [