Abstract
Purpose :
The effect of goniotomy specifically for pseudoexfoliative glaucoma (PXG) has not been studied extensively. We describe the effects of goniotomy for PXG over a follow up time of 4 years.
Methods :
This is an IRB-approved retrospective chart review for a multi-surgeon, large academic center using the CPT code 65820 for goniotomy from January 2012 to May 2022. Charts were individually reviewed and only Kahook Dual Blade and TrabEx surgeries for PXG patients were included in the analysis. Intraocular pressure (IOP) measurements and reduction of medication burden were recorded at various time points from 1 month to 4 years after surgery. Patients with inadequate follow up were excluded. Data points were collected up until a subsequent glaucoma surgery was performed, if applicable.
Results :
In total, 32 eyes were included in this analysis. Baseline IOP prior to surgery was 18.9 +/- 7.1 mmHg. Mean reduction of IOP at 6 months, 1 year, 2 years, 3 years, and 4 years after surgery respectively were 4.9 +/- 6.5 mmHg (p=0.006), 4.9 +/- 6.7 mmHg (p=0.007), 5.4 +/- 8.1 mmHg (p=0.033), 4.8 +/- 9.4 mmHg (p=0.097), 5.0 +/- 6.6 mmHg (p=0.115). At the preoperative period, mean number of glaucoma medications was 2.2 +/- 1.3 drops with reduction to 1.4 +/- 1.5 drops (p=0.069) at the time of the latest follow up.
Conclusions :
Goniotomy is an effective surgical option for PXG with reduction in IOP seen in the first two years. There was no statistically significant difference in medication burden after goniotomy for PXG.
This abstract was presented at the 2023 ARVO Annual Meeting, held in New Orleans, LA, April 23-27, 2023.