Longer axial length is associated with better prediction for refractive error after sutureless flanged intrascleral fixation of intraocular lens

Objective To investigate refractive outcomes and associated factors after sutureless flanged intrascleral fixation of intraocular lens (SFIF-IOL). Methods We retrospectively reviewed the medical records of consecutive patients who underwent SFIF-IOL at a single centre. The prediction error (PE; difference between the achieved and target refractive error) and absolute PE (APE) were analysed. Risk factors associated with refractive surprise, defined as APE > +0.5 D, were investigated using multivariable logistic regression analysis. Results Ninety-one eyes were included. At the final follow-up, the mean PE and APE were +0.07 ± 0.88 and +0.68 ± 0.56 D, respectively. Refractive surprise was observed in 44 eyes (54.3%) and was associated with a shorter axial length (AL) [odds ratio, 0.825; 95% confidence interval, 0.688–0.991; P = 0.039]. APE showed a significant correlation with AL at the final visit (⍴ = −0.269, P = 0.010), and eyes with AL ≥ 26 mm had significantly lower APE than did those with AL of 24–26 mm ( P = 0.021) and AL