Analyse von Indikationen, ophthalmologischen Parametern, Implantationsverfahren und Komplikationen bei retropupillärer Irisklauenlinsenimplantation
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.
Review
Metadata
License
Except where otherwise noted, this item's license is described as Attribution 4.0 International