Short‐term changes in and preoperative factors affecting vaulting after posterior chamber phakic Implantable Collamer Lens implantation

Abstract Background To describe the very early vault changes in first month after Implantable Collamer Lens (ICL) implantation and to evaluate effect of preoperative biometric factors on vault. Methods Eighty-three eyes from eighty-three subjects with complete data who met follow-up requirements were recruited this retrospective study between May 2019 March 2020. We quantitatively assessed postoperative at 2 h, 1 day, week, following implantation. Associations age, ICL size, spherical equivalent (SE), axial length (AL), central corneal thickness (CCT), flat keratometry (K), steep K, mean anterior chamber depth (ACD), crystalline lens (LT), white-to-white (WTW) diameter obtained by three devices, horizontal vertical sulcus-to-sulcus (STS) diameter, bright dark pupil sizes (BPS DPS) DPS-BPS investigated using Spearman’s correlation analysis stepwise multiple regression analysis. Results The values 672.05 ± 30.72, 389.15 28.33, 517.23 30.76 530.12 30.22 μm, respectively. Significant differences found day week operation. size (β = 0.942; p < 0.001), followed STS -0.517; LT -0.376; 0.001) -0.257; 0.017), significantly influenced equation was expressed as follows: (µm) -1369.05 + 657.121 × size- 287.408 − 432.497 137.33 (adjusted R 0.643). Conclusions After implantation, decreased then increased, but it did not return value h surgery. are key for predicting vaulting.