Related Experiment Videos
Capsulorhexis phymosis following uncomplicated phacoemulsification surgery
H J Zambarakji1, S Rauz, A Reynolds
1Department of Ophthalmology, Charing Cross Hospital, London, UK.
Eye (London, England)
|January 1, 1997
Summary
Cataract surgery with silicone intraocular lenses shows greater capsular contraction than polymethylmethacrylate (PMMA) lenses. This capsulorhexis phymosis primarily occurs within six weeks post-operation.
Area of Science:
- Ophthalmology
- Biomaterials Science
Background:
- Cataract surgery is a common procedure.
- Intraocular lens (IOL) materials may influence post-operative outcomes.
- Capsular phimosis is a potential complication after cataract surgery.
Purpose of the Study:
- To compare capsular phimosis after phacoemulsification surgery.
- To evaluate the impact of polymethylmethacrylate (PMMA) versus silicone IOLs on capsular contraction.
- To assess the timing and degree of capsular contraction.
Main Methods:
- Sixty-four patients undergoing phacoemulsification were evaluated.
- Anterior capsular diameters were measured at 1 day, 6 weeks, and 6 months.
- Statistical analysis included paired Student's t-test to compare lens types and time points.
Main Results:
- Significant capsular contraction occurred within 6 weeks (p < 0.001) and continued up to 6 months (p < 0.05).
- Silicone IOLs resulted in significantly smaller capsular areas compared to PMMA IOLs at 6 weeks and 6 months.
- No patients required Nd:YAG laser capsulotomy for clinically significant capsular contracture.
Conclusions:
- Anterior capsular contraction is common after phacoemulsification.
- The highest rate of capsular contraction occurs within the first 6 weeks.
- Silicone IOLs are associated with more pronounced capsular contraction than PMMA IOLs.