What question did this study set out to answer?

The study aims to compare the safety and efficacy of PMMA and PVDF intraocular lenses in the modified Yamane technique.

February 19, 2026Journal of Cataract & Refractive Surgery0 citations

Comparison of PVDF and PMMA Haptics Used in the Modified Yamane Technique

MİMehmet İçöz EEEyüp Erkan AKAli Kutay Kılınç

Key Points

The study aims to compare the safety and efficacy of PMMA and PVDF intraocular lenses in the modified Yamane technique.
Conducted a retrospective analysis on 60 participants divided into two groups (PMMA and PVDF haptics)
Recorded demographic data, preoperative factors, and postoperative visual acuity and complications
Compared operative time, complication rates, and visual outcomes between the two groups
No significant differences found in demographics, surgery indications, or operative times between groups
Both groups showed improved visual acuity postoperatively; however, no significant intergroup differences were noted
Haptic damage occurred in three cases of the PMMA group, with none in the PVDF group, but not statistically significant

Abstract

Purpose: To compare the efficacy and safety of two different intraocular lenses(IOLs) used in the modified Yamane technique:one with polymethyl methacrylate(PMMA) haptics(AcrySof MA60AC,Alcon Laboratories) and the other with polyvinylidene fluoride(PVDF) haptics (Eyecril Plus,Biotech Vision Care). Setting: Yozgat City Hospital,Türkiye. Design: Retrospective study. Methods: This study was conducted on 60 participants(Group An=32,AcrySof MA60AC;Group En=28,Eyecril Plus).Demographic data,preoperative findings, and postoperative month 6 visual acuity,refraction values, and operative time were recorded for all participants.Intraoperative, early,and late postoperative complications of both groups were compared. Results: No significant differences were observed between the two groups in terms of demographic data, surgical indications,operative time,axial length, or IOL power(p>0.05).While a significant improvement was observed from preoperative to postoperative visual acuity in both groups,no significant differences were detected between the groups in visual acuity,refraction values,or intraocular pressure measurements(p0.05).In the analysis of complications,haptic damage was observed intraoperatively in three cases in Group A,whereas no haptic damage occurred in Group E;however, the difference was not statistically significant(p=0.09).The most frequently observed complication in both groups was cystoid macular edema(Group A,n=4;Group E,n=3),and no significant differences were found between the groups regarding early and late postoperative complications(p>0.05). Conclusion: To our knowledge,this is the first study comparing the efficacy and safety of PMMA-and PVDF-haptic IOLs in the modified Yamane technique.Although PVDF haptics are known to provide more reliable surgery due to their flexibility and resistance characteristics,surgery using PMMA haptics appears to have comparable efficacy and safety.Nevertheless,for surgeons performing this technique for the first time,we recommend beginning with IOLs designed with PVDF haptics due to the possibility of intraoperative haptic damage.

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