Comparison of Long-Term Effects After Modified CO2 Laser-Assisted Deep Sclerectomy and Conventional Trabeculectomy in Chinese Primary Open-Angle Glaucoma

INTRODUCTION To compare the long-term effect after modified CO2 laser-assisted sclerectomy surgery (MCLASS) and conventional trabeculectomy (TRAB) in medically uncontrolled Chinese primary open-angle glaucoma (POAG) patients. This was a retrospective comparative study. METHODS A total of 87 patients were reviewed, including 45 in the MCLASS group and 42 in the TRAB group. Intraocular pressure (IOP), best-corrected visual acuity (BCVA), and use of supplemental medical therapy were retrospectively compared at baseline, and until 36 months postoperatively. RESULTS Patients in both groups achieved a significant IOP decrease from baseline (P