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目的初步探讨小梁切除术后无功能滤过泡患者眼压控制正常的机制。方法对小梁切除术后无功能滤过泡,但眼压控制正常的16名患者进行包括一般眼科检查、UBM检查及前房角镜检查,寻找可能的房水排除途径。结果所有16只眼为瘢痕型滤过泡,虹膜周切孔通畅;UBM检查滤过泡区域未发现结膜瓣及巩膜瓣下潜在腔隙;前房角镜检查全部患者内滤过口阻塞、房角开放均>1/2周。结论小梁切除术后无功能滤过泡但眼压控制良好眼可能并不存在特殊的房水引流途径,其原因多是由于术前对患者的手术方式选择不当或手术适应症掌握不当。
Objective To investigate the mechanism of normal intraocular pressure control in patients with non-functional filtering bleb after trabeculectomy. Methods Totally 16 patients with no functional filtering bleb after trabeculectomy but with normal intraocular pressure were included in general ophthalmology examination, UBM examination and gonioscopy examination to find out the possible ways of aqueous humor elimination. Results All 16 eyes were scar type filtration bleb with iris perforation. Unobstructed conjunctival flap and scleral flap were found in UBM examination. Condygaly was performed in all patients with glottic obstruction. Open at> 1/2 week. CONCLUSIONS: There is no particular way of aqueous humor drainage due to non-functional filtering bleb after trabeculectomy but with good control of intraocular pressure. The reason is mostly due to the poor preoperative selection of surgical procedures or improper surgical indications.