David(1981)报道一种依眼压分级定量小梁切除术。我们加以改进,为15例(18眼)病人行定量巩膜瓣瓣下小梁切除术,平均随访25.7个月(最长4年2个月)。初步认为其术后效果好,并发症较少,定量制作巩膜瓣基本达到限性调节房水外流,稳定控制眼压的目的。手术方法一.根据术前未降压时高眼压及眼压下降后前房角行巩膜瓣制作分级。眼压分级:Ⅰ级 David (1981) reported a quantitative trabecular surgery under IOP. We improved the quantitative scleral flap trabeculectomy for 15 patients (18 eyes) with an average follow-up of 25.7 months (up to 4 years and 2 months). Preliminary view of its postoperative effect, fewer complications, quantitative scleral flap basically reached the limit to regulate aqueous efflux, the purpose of controlling IOP steadily. Surgical methods 1. According to preoperative intraocular pressure without ocular hypertension and intraocular pressure after the anterior chamber angle sclera flap making grading. IOP classification: Ⅰ level