Early results of SubCyclo laser in glaucoma patients visiting a tertiary care hospital in South India: A pilot study

Abstract

Purpose: To study the safety and effectiveness of SubCyclo (subliminal transscleral cyclophotocoagulation [TSCPC] – Vitra 810, Quantel Medical) laser procedure for patients with various subtypes of glaucoma. Methodology: This pilot study was conducted in a tertiary eye care hospital in South India from October 2019 to December 2019. The study included ten eyes of nine patients who were diagnosed with different types of glaucoma and received subliminal TSCPC under local anesthesia. The laser settings were customized based on the patients' intraocular pressure (IOP). The patients were followed up after 1 week, 1 month, and 2 months after the laser procedure. Results: Ten eyes of nine patients were treated with subliminal TSCPC and were followed up 2 months of the procedure. The mean age of the patients was 63.33 years. The mean preoperative IOP was 31 mm Hg, which reduced to 20.7 mmHg 1 week after the procedure. At 1 month, the average IOP was 19.3 and 17.3 mmHg at 2 months. The mean number of antiglaucoma medications used was 3 before the laser intervention, which reduced to 2.8 following the treatment. In our pilot study using SubCyclo laser, we observed a 33.22% drop in the IOP from the baseline after 1 week and 44.19% reduction in IOP at the 2nd month follow-up with a single laser session. Conclusions: This study concludes that a satisfactory decrease in IOP could be achieved by SubCyclo laser procedure in the early postoperative visits with a low-risk profile.