A Clinical Study on the Effect of the Different Size of Conjunctival Flap on the Configurations of Filtering Blebs and Intraocular Pressure after Glaucoma Filtering Surgery

Objective To assess the efficiency of filtering blebs with a big or a small conjunctival flap and postoperative effect of glaucoma filtering surgery.Methods Fifty-five eyes had glaucoma filtering surgery with a big conjunctival flap,and fifty-five eyes had glaucoma filtering surgery with a small conjunctival flap.The configurations of filtering blebs and postoperative effect were compared between the two groups after three months.Results The postoperative intraocular pressure was significantly lower in the big conjunctival flap group in comparison with a small conjunctival flap group and there was a statistically significant difference in the configurations of filtering blebs between the two groups.Conclusions Postoperative effect of glaucoma filtering surgery with a big conjunctival flap is better than a small conjunctival flap.It may help prevent surgical failure.