The Long-term Effects of Prostaglandin Analogues on Central Corneal Thickness and Intraocular Pressure
10.3341/jkos.2020.61.6.650
- Author:
Ji Eun SONG
1
;
Mi Yeon LEE
;
Pil-Wook CHUNG
;
Joon Mo KIM
Author Information
1. Department of Ophthalmology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
- Publication Type:Original Article
- From:Journal of the Korean Ophthalmological Society
2020;61(6):650-657
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
Purpose:To evaluate the long-term effect of 0.005% latanoprost (LA) and 0.0015% tafluprost (TA) on intraocular pressure (IOP) and central corneal thickness (CCT) in glaucoma patients.
Methods:This study was a retrospective study, which enrolled open-angle glaucoma (OAG) patients treated with one of two prostaglandin analogues. The patients were observed for at least three years and underwent corneal thickness measurements at least once a year. Patients with a history of ocular surgery except cataract surgery or another glaucoma medication during the follow-up were excluded. Goldmann applanation tonometry and specular microscopy were used to measure the IOP and CCT, respectively. Changes in IOP and CCT were compared between the two groups.
Results:A total of 55 OAG patients (110 eyes) were enrolled. The patients were divided into two groups; one group (50 eyes) used LA as anti-glaucoma eye drops, and the other group (60 eyes) used TA. Statistically significant reductions in IOP and CCT were observed in both groups. The mean reduction in IOP over a three year period was -2.18 ± 2.83 mmHg in the LA group and -2.08 ± 2.40 mmHg in the TA group (paired t-test, p < 0.001, for both). In terms of CCT, the mean reduction was -20.24 ± 22.92 μm in the LA group and -32.90 ± 32.04 μm in the TA group (paired t-test, p < 0.001, for both) for three years. The decrease in CCT was not significantly different between the two groups (p = 0.061). There was no significant difference in the IOP reduction between the two drugs nor was there a significant correlation between the IOP and the CCT.
Conclusions:This study indicated that 0.005% LA and 0.0015% TA had similar effects on the reduction of IOP and CCT for three years without damaging the corneal endothelium.
