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  • Title: Outcome of phacoemulsification and intraocular lens implantion in eyes with pseudoexfoliation and weak zonules.
    Author: Shingleton BJ, Neo YN, Cvintal V, Shaikh AM, Liberman P, O'Donoghue MW.
    Journal: Acta Ophthalmol; 2017 Mar; 95(2):182-187. PubMed ID: 27230126.
    Abstract:
    PURPOSE: To evaluate the results of phacoemulsification and intraocular lens (IOL) implantation in eyes with pseudoexfoliation (PEX) and zonular weakness. METHODS: Two hundred and ninety-five patients (295 eyes) were recruited. This study is a retrospective case review of 143 PEX eyes with preoperative (Group 1) and intraoperative (Group 2) signs of zonular weakness, 76 PEX eyes (Group 3) and 76 non-PEX eyes without zonular weakness (Group 4) undergoing phacoemulsification and IOL implantation performed by single surgeon from year 1988 to 2010. Outcome measures included frequency of postoperative pseudophakodonesis, anterior capsule contraction and IOL decentration/dislocation. Postoperative vision, intraocular pressure (IOP) and glaucoma medication requirements were also assessed. A subanalysis on identical postoperative outcomes of capsular tension ring (CTR) implantation was performed. Comparisons were made for 52 PEX eyes with zonular weakness receiving nonsutured CTR implantation (Group A), 91 PEX eyes with zonular weakness not receiving CTR implantation (Group B) and 142 PEX eyes without zonular weakness (Group C). RESULTS: Mean follow-up was 4.08 ± 0.48 years and maximum was 8.3 years. Both Groups 1 and 2 showed higher incidence of complications than Groups 3 and 4 (p < 0.01). Vision, IOP and glaucoma medication requirements were similar postoperatively for all four groups. Groups A and B had a significantly higher proportion of postoperative complications than Group C (p < 0.01). There was no significant difference in risk of developing these complications between Groups A and B (p = 0.64). CONCLUSION: Postoperative complication rates are higher in PEX eyes with preoperative and/or intraoperative signs of zonular weakness undergoing phacoemulsification. Nonsutured CTR implantation does not prevent IOL and capsular complications postoperatively.
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