AIM:To compare the clinical effect of improved sewing method and traditional sewing method of scleral flap in trabeculectomy for acute angle-closure glaucoma.METHODS:Forty-two eyes 68 cases with acute angle-closure glaucoma underwent trabeculectomy and peripheral iridectomy,A group 16 cases 28 eyes:improved sewing method of scleral flap was adopted during operation;B group 26 cases 40 eyes:traditional sewing method of scleral flap was used during operation.RESULTS:All cases were followed-up for 6-12 months,averaged 6.7 months.A group:the suture was pulled out 3-17 days after operation,averaged 8.33 days.The shallow anterior chamber was 2 cases(7%) in A group and 12 cases(30%) in B group,there was significant difference between 2 groups(P<0.05).The intraocular tension was 10-19mmHg (averaged 13.31mmHg) in A and 6-42mmHg (averaged 14.64mmHg) in B after 2 weeks,there was no significant difference between 2 groups.The intrao-cular tension was 10-17.30mmHg (averaged 11.96mmHg) in A and 7-44mmHg(averaged 15.17mmHg) in B after 6 months,there was no significant difference between 2 groups.The functional filterbubble was 28 cases(100%) in A and 36 cases(90%) in B,there was no significant difference between 2 groups.CONCLUSION:It is safe and effetive that the improved sewing method of scleral flap for trabeculectomy of acute angle-closure glaucoma,and it is a better method to avoid the occurrance of shallow anterior chamber than the traditional sewing method in the forepart after operation.