TITLE:
Gonioprism-Assisted Laser Cyclophotocoagulation in Treatment of Primary Open Angle Glaucoma after Failed GATT Procedure: A Case Report
AUTHORS:
Yasar Sakarya, Rabia Sakarya
KEYWORDS:
Cyclophotocoagulation, Frequency Doubled Nd:YAG, GATT, Glaucoma
JOURNAL NAME:
Open Journal of Ophthalmology,
Vol.15 No.4,
November
14,
2025
ABSTRACT: Aim: To present a case of gonioprism-assisted laser cyclophotocoagulation (GALC) following a failed gonioscopy-assisted transluminal trabeculotomy (GATT), utilizing a standard vitrectomy laser probe and a direct surgical goniolens in a patient with primary open-angle glaucoma (POAG). Materials and Methods: Case report. Results: A 76-year-old male patient with POAG underwent a 360-degree GATT without complications. However, during the postoperative 3-month period, despite receiving maximum topical anti-glaucoma treatment, intraocular pressure (IOP) failed to decrease to the target intraocular pressure (IOP) range of 12 - 15 mmHg. Subsequently, a 240-degree GALC was successfully performed, and the IOP has since been maintained at safe levels with the use of three medications. (measured between 12 and 16 mmHg at 1 and 6 months with three medications). Conclusions: GALC presents itself as a viable option for the treatment of POAG. This procedure provides surgeons with an additional alternative treatment option in situations where an endocyclophotocoagulation (ECP) device is unavailable.