Comparison the clinical efficacy between FP7 and FP8 Ahmed glaucoma valve implantation in the treatment of refractory glaucoma

Abstract

Objective To compare the clinical efficacy between FP7 and FP8 Ahmed glaucoma valve (AGV) implantation in the treatment of adult refractory glaucoma. Methods The data of 40 cases of adult refractory glaucoma from May 2015 to Feb. 2019 were retrospectively analysed. All cases were divided into two groups randomly. Group A, 25 eyes of 25 patients, underwent FP7 AGV implantation, and group B, 15 eye of 15 patients, underwent FP8 AGV implantations. The fallow-up time was 12 months. The intraocular pressure, visual acuity, success rate, complications and postoperative medication before and after surgery were compared between the two groups. Results The average intraocular pressure at each time point after surgery were significantly lower in the two groups than those before surgery (P 0.05). The number of anti-glaucoma drugs in both groups was significantly reduced after surgery compared with that before surgery, and the difference was statistically significant (P 0.05). There were no statistically significant difference between the two groups in the success rate, visual acuity improvement rate and complication rate at 12 months after surgery (P>0.05). Conclusion There is no significant difference in reducing intraocular pressure, protecting vision, complications, drug dependence of glaucoma, and the success rate between FP7 and FP8 AGV implantation. Application of FP8 AGV in adult eyes with insufficient subconjunctival space is a safe and effective choice. Key words: Glaucoma, refractory, adult; Valve, glaucoma, Ahmed; Efficacy