J Korean Ophthalmol Soc.  2022 Mar;63(3):261-267. 10.3341/jkos.2022.63.3.261.

Clinical Efficacy of Iris Cystostomy Using a Yttrium Aluminum Garnet Laser

• Jo YJ
• Son YB
• Lee JS

• KMID: 2527365
• DOI: http://doi.org/10.3341/jkos.2022.63.3.261

Abstract

Purpose
To report the clinical efficacy of neodymium-doped yttrium aluminum garnet (Nd:YAG) laser iris cystotomy in iris cysts.
Methods
We examined three eyes with primary iris cysts diagnosed by ultrasound biomicroscopy that had fewer cornea endothelial cells or reduced visual acuity due to an occluded visual axis. Nd:YAG laser cystotomy was done. The logarithm of the minimum angle of resolution (logMAR) visual acuity, intraocular pressure (IOP), and specular microscopy test at baseline and last follow-up were reviewed.
Results
The average patient age was 54.0 ± 5.3 years; the mean follow-up was 11.7 ± 2.1 months. The baseline and final logMAR visual acuity were 0.23 ± 0.25 and 0.16 ± 0.15, respectively. Visual acuity improved, although not significantly (p = 0.317). The baseline and final IOP were 14.7 ± 2.3 and 13.7 ± 0.6 mmHg, respectively (p = 0.276). The corneal endothelial cell density (p = 0.109), hexagonality (p > 0.999), and coefficient of variation (p = 0.285) were not significantly different after treatment. There were no serious complications or recurrence.
Conclusions
After Nd:YAG laser cystotomy, the cell density and morphology of corneal endothelial cells changed little. It can be considered an effective treatment when there is a decrease in corneal endothelial cells or occlusion of the visual axis.

Keyword

Cyst of iris, Laser treatment, Neodymium-doped yttrium aluminium garnet (Nd:YAG) laser