Item type:Thesis, Open Access

Analyse von Indikationen, ophthalmologischen Parametern, Implantationsverfahren und Komplikationen bei retropupillärer Irisklauenlinsenimplantation

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Date

2025-09-10

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Abstract

In the absence of capsular support, the retropupillary iris claw lens is a suitable means of correcting aphakia. The aim of this study is a large-scale evaluation of pre-, intra- and postoperative parameters with a special focus on indications, visual acuity, refraction and complications. The data of 342 eyes operated on between 2013 and 2022 were retrospectively evaluated. The follow-up period was 9 months. PEX syndrome was the most common preliminary finding in this study. It was significantly more common in eyes with the initial situation of a dislocated IOL. Overall, there was a significantly increasing worsening of astigmatism and an increasing improvement in visual acuity from pre- to postoperative up to and including the fourth month. From the fifth to the ninth month, no significant change in the mean astigmatism and visual acuity values was observed. The postoperative mean deviation of the spherical equivalent from the target refraction was 1.37 dpt. Remarkably, eyes with a shorter incision length showed a greater increase in astigmatism than those with a longer incision length. A significantly higher increase in astigmatism was also seen in eyes with a corneal tunnel compared to the sclerocorneal approach. Early postoperatively, a significantly lower mean IOP was found compared to baseline. The most common postoperative finding was ovalization of the pupil (33.3 %). Other significant postoperative complications were ocular hypotony (6.1 %), ocular hypertension (5.6 %), CME (4.1 %), corneal decompensation (3.5 %), hyphema (2.6 %), amotio (2 %) and IOL dislocation (0.9 %). There were significantly more postoperative hypertension episodes in the presence of preoperative optic disc excavation (>0.6) and/or diagnosed glaucoma, significantly more hypotony episodes with self-closing tunnel compared to sutured incisions and significantly more postoperative cystoid macular edema with intraoperative complete vitrectomy. The comparatively low complication profile in combination with a fast and uncomplicated implantation makes the retropupillary iris claw lens a good lens alternative.

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Dates
Issued: 2025-09-10
Faculty
FB20:Medizin
Language
de
Keywords
IOLIrisklauenlinseRetropupillär
License
Attribution 4.0 International
URI
https://open.uni-marburg.de/handle/openumr/9296
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Ina Fillies: Analyse von Indikationen, ophthalmologischen Parametern, Implantationsverfahren und Komplikationen bei retropupillärer Irisklauenlinsenimplantation. : 2025-09-10.

License

Attribution 4.0 International
Except where otherwised noted, this item's license is described as Attribution 4.0 International