Combined Ahmed glaucoma valve implantation and 23-gauge vitrectomy for neovascular glaucoma with vitreous hemorrhage

Abstract

Objective To evaluate the clinical efficacy of Ahmed glaucoma valve (AGV) implantation combined with transconjunctival sutureless 23-gauge vitrectomy(23G-TSV) for treatment of neovascular glaucoma (NVG) with vitreous hemorrhage.Methods 25 eyes of 25 patients with neovascular glaucoma and vitreous hemorrhage were treated with combined AGV implantation and 23G-TSV.The intraocular pressure(IOP),best corrected visual acuity,success rate and postoperative complications were followed up for 6-12 months.The avevage follow up time was (9.96 ± 1.93) months.Results The IOP was(15.94±6.05),(14.76±2.39),(17.12±6.06),(17.44±2.75) and (18.96 ± 3.56) mmHg (1 mm Hg =0.133 kPa) at 1 day,1 week,1 month,3 months and the last follow-up postoperatively.Compared with pre-operative IOP of (48.12 ± 7.29) mmHg,the IOP was significantly(t =16.733,P ＜ 0.05 ; t =21.961,P＜0.05;t =16.917,P＜0.05 ;t =17.609,P＜0.05 ;t =18.091,P＜0.05)decreased after surgery; The total success rate was 84.0％ at final follow-up; The visual acuity was improved in all patients.Conclusion AGV implantation combined with 23G-TSV is effective for treating NVG with vitreous hemorrhage. Key words: Implants, drainage, glaucoma, Ahmed; Vitrectomy, 23G; Hemorrhage, Vitreous; Glaucoma, neovascular