Causes of Secondary Intraocular Lens Implantation and Surgical Outcomes

Objective: The aim of this study is to determine preoperative ocular risk factors and indications for secondary intraocular lens (IOL) implantation surgery and to compare the visual outcomes of this procedure. Material and Methods: Nineteen patients who underwent secondary IOL implantation between January 2018 and February 2019 at K？r？kkale University Faculty of Medicine were included in the study. Preoperative causes of secondary IOL implantation, additional ocular pathologies such as pseudoexfoliation (PEX), uveitis, trauma, systemic syndromes, best corrected visual acuity (BCVA) before and after surgery, surgical procedures and possible postoperative complications were noted separately. Results: Nineteen eyes of 19 patients were included in this study. Eleven (57.9%) of the patients were female and 8 (42.1%) were male. The mean age of all patients was 69.16 ± 6.92 (59-80) years. When the patients were evaluated preoperatively, the most common cause was surgical aphakia secondary to intraoperative complications due to primary surgery in 11 patients (52.6%). The second most common cause was IOL subluxation in 6 patients. IOL implantation with iris or scleral fixation was performed in patients who did not have sulcus support and the other IOLs were inserted to the sulcus. Preoperative mean BCVA was 0.223 ± 0.187, and postoperative mean BCVA was 0.702 ± 0.209. The difference between preoperative and postoperative mean BCVA was statistically significant (p <0.001). Conclusion: IOL implantation in the sulcus is easier and the complication rate is lower than the iris and scleral fixation IOL implantation methods. The results of iris fixation or scleral fixation in cases without sulcus support are also promising