Comparative study of phacoemulsification–subscleral trabeculectomy versus phacoemulsification–deep sclerectomy

To compare the surgical outcomes of phacoemulsification–subscleral trabeculectomy versus phacoemulsification–deep sclerectomy with intraoperative mitomycin C in openangle glaucoma.Methods: The study was conducted on 40 chronic primary open-angle glaucomatous eyes withsenile cataract. They were divided into two groups: group I (n= 20): eyes undergoing hacoemulsificationwith subscleral trabeculectomy, and group II (n=20): eyes undergoing phacoemulsificationwith deep sclerectomy. Intraoperative mitomycin C (0.4 mg/ml for 3 min) was applied in bothgroups. Postoperative intraocular pressure (IOP), complications, glaucoma medications, visual outcomes, and the bleb appearance were assessed for 12 months.Results: The mean postoperative IOP was significantly lower (P 0.05) in both groups in all time intervals in comparison to their preoperative values. The mean postoperative IOP was 14.1 ± 5.4 mmHg in group I, and 14.8 ± 3.1 Hg in group II. No major complications were encountered in either procedure, but complications such as shallow anterior chamber, hypotony, and delayed bleb leaks were common in group I, whereas intraoperative perforation of Descemet’s membrane occurred in group II. No significant difference in visual acuity improvement, visual field changes, and surgical success outcome were found between both groups.