Risk factors of intraocular hypertension after phacoemulsification and intraocular lens implantation in normal eyes

Purpose: This study aimed to analyze the risk factors for high intraocular pressure (IOP) after phacoemulsification and intraocular lens implantation (PEI). Setting: Wuhan Aier Eye Hospital, China. Design: Retrospective case series. Methods: : The medical recordsof consecutive patients who underwent uneventful PEI from December 1, 2020, to April 1, 2021, by the same surgeon were reviewed. Results: : A total of 548 eyes of 416 patients were analyzed. The younger the age, the longer the axial length (AXL)and the larger the CDE; patients with diabetes were more likely to have high IOP after the surgery.For every 0.1-mm increase in the AXL, the likelihood of a 5-mm Hg increase in early postoperative IOP increased 1.167-fold and that of a 10-mm Hg increase in IOP increased 1.227-fold. The IOP increased by 0.1 mmHg for each 0.1 increase in CDE( P <0.001). Conclusions: : Age is an independent protective factor for early high IOP after PEI. High myopia, anterior chamber distance >4 mm, diabetes mellitus, and high CDE are risk factors for postoperative high IOP. AL and CDE could predict the peak IOP of 5 mm Hg and 10 mm Hg after the surgery.