Title
Changes in rotation after implantation of a bag-in-the-lens intraocular lens Changes in rotation after implantation of a bag-in-the-lens intraocular lens
Author
Faculty/Department
Faculty of Medicine and Health Sciences
Publication type
article
Publication
Fairfax, Va ,
Subject
Human medicine
Source (journal)
Journal of cataract and refractive surgery. - Fairfax, Va
Volume/pages
35(2009) :8 , p. 1385-1388
ISSN
0886-3350
ISI
000268747500013
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
Purpose To estimate the rotation stability of the bag-in-the-lens (BIL) intraocular lens (IOL) (Morcher 89A) over time and to assess whether the rotational stability of the IOL design is suitable for toric corrections. Setting Department of Ophthalmology, Antwerp University Hospital, Edegem, Belgium. Methods This prospective study evaluated patients who had cataract surgery and BIL IOL implantation. Postoperative red reflex photographs were taken 1 day, 5 weeks, and 6 months after surgery. Intraocular lens rotation was obtained by defining a triangle between a scleral blood vessel, the IOL haptic, and the IOL optic center. Changes in the triangle during the follow-up were evaluated using purpose-designed software written in MatLab. Results Fifty-nine eyes of 49 patients (mean age 68.0 years ± 11.9 [SD]) were included. There was little postoperative IOL rotation (mean 0.05 ± 2.02 degrees) between 1 day and 5 weeks (n = 46 eyes) and between 5 weeks and 6 months (mean 0.36 ± 1.39 degrees) (n = 15 eyes). The IOL rotation remained unchanged from 1 to 6 months postoperatively (P = .327, analysis of variance). There was no correlation between IOL rotation and patient age (r2 = 0.011) or IOL power (r2 = 0.003). Postoperative IOL rotations were not different between left eyes and right eyes (P = .862, t test). Conclusion The BIL IOL showed good rotation stability, making it suitable for toric correction.
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