Posterior optic buttonholing of intraocular lens implantation through posterior capsulorrhexis margin: A technique of intraocular lens implantation in cases of anterior capsulorrhexis extension in pediatric cataract surgery

This study aimed to evaluate the intra- and postoperative complications of intraocular lens (IOL) implantation with posterior optic buttonholing (POBH) in children that had undergone phacoemulsification irrigation/aspiration for congenital/developmental cataract and experienced complication of anterior capsulorrhexis extension (ACE). A total of 25 eyes of 21 patients were included in the study. A foldable three-piece IOL was implanted into the bag/ciliary sulcus with primary posterior capsulorrhexis and POBH. The visual acuity improved from 2.12 ± 0.69 log MAR to 1.38 ± 0.49 log MAR at 6 months follow-up. Postoperative complications included heightened postoperative inflammation in three patients and temporary corneal edema in two patients. Only one patient had developed posterior capsular opacification (PCO) at 6 months follow-up with mild tilt, while the rest 24 eyes had no PCO formation and adequate IOL centration. The results of this study indicate that a three-piece foldable IOL implantation with POBH is a feasible option for children who experienced ACE during pediatric cataract surgery, as it results in satisfactory surgical outcomes and very few ocular complications.