小梁切开术治疗原发性先天性青光眼的远期疗效

目的　评价小梁切开术治疗原发性先天性青光眼的远期疗效。方法　回顾性分析 2 2例 (33只眼 )原发性先天性青光眼患者首次行小梁切开术的远期疗效。手术成功的判定标准 :不用或仅局部应用抗青光眼药物 ,眼压≤ 2 1mmHg(1mmHg =0 133kPa) ,且角膜清亮 ,角膜横径和杯 /盘比值减小或未进展者。结果　患者随访时间均在 1年以上 ,平均随访 (5 4 2± 33 2 )个月 ,随访 3年以上者占 72 7%。术后平均眼压 (16 1± 6 2 )mmHg ,较术前眼压 (2 9 9± 11 7)mmHg明显降低(P <0 0 0 1) ;术后平均角膜横径 (12 9± 1 0 )mm较术前 (13 7± 1 4 )mm明显减少 (P =0 0 0 2 ) ,手术前后平均杯 /盘比值差异无显著意义 (P =0 14 8)。手术成功者其杯 /盘比值明显减小 (术前 0 7± 0 2 ,术后 0 6± 0 3,P =0 0 0 7)。根据上述手术成功标准 ,手术成功率 1、3、5年分别为 97 0 %、93 2 %及74 5 % (Kaplan Meier生存分析 )。接受 1次手术者 2 0只眼 ,手术成功率为 70 0 % ;接受 2次以上手术者 13只眼 (39 6 % ) ,再手术成功率为 6 9 2 %。矫正视力≥ 0 4者占 4 1 6 % ,0 1～ 0 3者占 2 9 2 % ,<0 1者占 2 9 2 %。杯 /盘比值 >0 8者是造成低视力的危险因素 (线性回归分析 ,P =0 0 13)。本组 18只眼行视野检查

Long-term effect of trabeculotomy on primary congenital glaucoma

OBJECTIVE: To evaluate the long-term effect of trabeculotomy on primary congenital glaucoma. METHODS: This retrospective study included primary congenital glaucoma patients who underwent trabeculotomy as an initial surgery between 1988 and 1999 with follow-up at least one year. Definitions of successful operation were determined as (1) intraocular pressure (IOP) /= 0.4, 29.1% between 0.1 and 0.3, and 29.2% 0.8 (P = 0.013) was risk factor responsible for poor vision. Among 18 eyes that were examined for visual field, glaucomatous visual field loss was found in 14 eyes (77.7%). Early-stage defect was seen in 42.8%, intermediate-stage in 28.6%, and late-stage in 28.6% of eyes. Hyphema was found in 14 eyes (42.4%). However, hyphema in 10 out of 14 eyes (71.4%) was absorbed in just one day. Therefore, hyphema should not be considered as a high risk for surgical failure (P = 0.795). CONCLUSIONS: Trabeculotomy had a high success rate in treatment of primary congenital glaucoma with fewer complications during the follow-up time. Observation from repeated operations also showed satisfactory results. Therefore, the optimal goal in preserving useful visual acuity and visual field is to obtain better control of glaucoma with trabeculotomy and treatment of amblyopia.