Published in:
31-08-2022 | Refractive Errors | Cataract
Evaluations of bridging sutures in preventing iris capture in eyes with intrascleral fixation of implanted intraocular lens
Authors:
Makoto Inoue, Takashi Koto, Yuka Ota, Hiroko Bissen-Miyajima, Akito Hirakata
Published in:
Graefe's Archive for Clinical and Experimental Ophthalmology
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Issue 2/2023
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Abstract
Purpose
The study aims to determine the effectiveness of bridging sutures in preventing iris capture and a subsequent reverse pupillary block after an intrascleral fixation of an implanted intraocular lens (IOL).
Methods
We studied 6 eyes that had an iris capture with reverse pupillary block due to a dislocated IOL after an intrascleral fixation. After the dislocated IOL was repositioned, 10–0 polypropylene sutures were inserted 1.5 mm posterior to the limbus and directed to run between the iris and the IOL. The sutures were placed orthogonal to the haptics of the IOL. Anterior segment optical coherence tomography (AS-OCT) was used in 4 eyes to evaluate the degree of iridodonesis before and after the bridging sutures. The heights of the temporal and nasal sectors of the middle iris from the iris plane (the line between anterior chamber angles) were compared for each 0.2-s AS-OCT image taken immediately after the eye moved from a lateral to a primary position.
Results
None of the eyes had a recurrence of the iris capture after the bridging sutures. The refractive error, anterior chamber depth, and vision were not significantly altered after the bridging sutures were placed. The AS-OCT images showed that the height of the nasal iris was decreased more at 0 s postoperatively blocking the excessive downward movement of the nasal iris but not the iridodonesis.
Conclusion
Bridging sutures were effective in preventing iris capture and subsequent reverse pupillary block after an intrascleral fixation of an IOL.