Evaluation of the effects of selective laser trabeculoplasty on anterior segment parameters by anterior segment optical coherence tomography

• Published in: Lasers in medical science Vol. 35; no. 6; pp. 1271 - 1275
• Main Authors: Özer, Murat Atabey, Oğurel, Tevfik, Özen, Serkan, Küçüksümer, Yaşar
• Format: Journal Article
• Language: English
• Published: London Springer London 01-08-2020; Springer Nature B.V
• Subjects: Anterior chamber; Cornea; Dentistry; Evaluation; Eye (anatomy); Glaucoma; Hypertension; Intraocular pressure; Lasers; Medicine; Medicine & Public Health; Optical Coherence Tomography; Optical Devices; Optics; Original Article; Parameters; Photonics; Quantum Optics; Statistical analysis; Statistical significance; Tomography; Anterior segment optical tomography; Glaucoma; Selective laser trabeculoplasty
• ISSN: 0268-8921; 1435-604X
• DOI: 10.1007/s10103-019-02904-3

To prospectively examine the effects of selective laser trabeculoplasty (SLT) on the anterior chamber angle (ACA) and its related parameters using anterior segment-optic coherence tomography (AS-OCT). Fifty eyes of 50 patients with primary open angle glaucoma (POAG) and ocular hypertension were included in the study. AS-OCT was performed before SLT application, immediately after and at 1 day and 1 month. Intraocular pressure (IOP), central corneal thickness (CCT) and anterior chamber depth (ACD) were also recorded and evaluated. No statistically significant difference was determined in ACA and other AS-OCT parameters (AOD, angle opening distance at 500 and 750 mm; TISA, trabecular-iris space area at 500 and 750 mm) before and 1 day after SLT application (
p
> 0.05). However, a statistically significant increase was determined in both the temporal and nasal ACA, AOD and TISA values between the baseline and day 30 (
p
< 0.001). No statistically significant change was observed in the CCT or ACD values (
p
> 0.05). SLT resulted in an increase in ACA, AOD and TISA when evaluated using AS-OCT. We think that this study provides a different perspective concerning the effects of SLT in the angle region and the involved mechanism.