Dysphotopsia and location of laser iridotomy: a systematic review.
AI Summary
This review found laser iridotomy location doesn't affect post-procedure dysphotopsia types or rates. Clinically, choosing a specific location won't reduce new visual disturbances, but the procedure may resolve existing halos/glare.
Abstract
This systematic review aimed to clarify the relationship between the location of laser peripheral iridotomy (LPI), a common procedure to prevent or treat angle-closure glaucoma, and the incidence of post-procedure visual disturbances known as dysphotopsias. Understanding this relationship is crucial due to the high frequency of LPIs performed and the significant impact dysphotopsia can have on vision and quality of life. Articles investigating the relationship between LPI location and dysphotopsia in at least five patients were identified via a literature search of OVID MEDLINE (1946-November 19, 2022) and EMBASE (1946-November 19, 2022). Non-comparative and non-English studies were excluded. Studies did not require a control group to be included. The Grading of Recommendations, Assessment, Development and Evaluation (GRADE) system and Cochrane Risk of Bias 2 (RoB2) tool were used to appraise included studies. Our review included three studies encompassing 1756 eyes from 878 patients. The location of LPI was grouped into superior (604 patients, 889 eyes), inferior (150 patients, 150 eyes), and nasal/temporal (443 patients, 717 eyes). The analysis showed no significant difference in the incidence of any new dysphotopsia types among the location groups post-LPI. Overall, the incidence of lines, ghost images, and blurring significantly increased after LPI, while halos and glare significantly decreased. In conclusion, the current literature suggests that the location of LPI has no significant relationship to the types and rates of dysphotopsia experienced thereafter. While there is a 2-3% risk of linear dysphotopsia after LPI regardless of location, LPI may also resolve pre-existing halos and glare.
MeSH Terms
Shields Classification
Key Concepts5
A systematic review of three studies encompassing 1756 eyes from 878 patients found no significant difference in the incidence of any new dysphotopsia types among superior (604 patients, 889 eyes), inferior (150 patients, 150 eyes), and nasal/temporal (443 patients, 717 eyes) laser peripheral iridotomy (LPI) location groups.
A systematic review of three studies encompassing 1756 eyes from 878 patients found that the overall incidence of lines, ghost images, and blurring significantly increased after laser peripheral iridotomy (LPI).
A systematic review of three studies encompassing 1756 eyes from 878 patients found that the overall incidence of halos and glare significantly decreased after laser peripheral iridotomy (LPI).
The current literature suggests there is a 2-3% risk of linear dysphotopsia after laser peripheral iridotomy (LPI) regardless of location.
A systematic review identified articles investigating the relationship between laser peripheral iridotomy (LPI) location and dysphotopsia in at least five patients via a literature search of OVID MEDLINE (1946-November 19, 2022) and EMBASE (1946-November 19, 2022), excluding non-comparative and non-English studies.
Related Articles5
Re: Narayanaswamy et al.: Argon laser peripheral iridoplasty for primary angle-closure glaucoma: a randomized controlled trial (Ophthalmology. 2016;123:514-521).
Randomized Controlled TrialCorneal transmissibility of diode versus argon lasers and their photothermal effects on the cornea and iris.
Basic ScienceLaser peripheral iridotomy with and without iridoplasty for primary angle-closure glaucoma: 1-year results of a randomized pilot study.
Randomized Controlled TrialMcCannel Suture Technique Resolves Persistent Dysphotopsia Following Laser Peripheral Iridotomy in Phakic Eyes.
Case SeriesVisual acuity after acute primary angle closure and considerations for primary lens extraction.
Case SeriesIs this article assigned to the wrong chapter(s)? Let us know.