Retina Macula Institute, Torrance, California.
Retina. 2013 Nov-Dec;33(10):2059-68. doi: 10.1097/IAE.0b013e31828992c3.
To assess the safety and efficacy of a modified technique for pars plana placement of the Ahmed valve in combination with pars plana vitrectomy in the treatment of glaucoma associated with posterior segment disease.
Thirty-nine eyes with glaucoma associated with posterior segment disease underwent pars plana vitrectomy combined with Ahmed valve placement. All valves were placed in the pars plana using a modified technique, without the pars plana clip, and using a scleral patch graft.
The 24 eyes diagnosed with neovascular glaucoma had an improvement in intraocular pressure from 37.6 mmHg to 13.8 mmHg and best-corrected visual acuity from 2.13 logarithm of minimum angle of resolution to 1.40 logarithm of minimum angle of resolution. Fifteen eyes diagnosed with steroid-induced glaucoma had an improvement in intraocular pressure from 27.9 mmHg to 14.1 mmHg and best-corrected visual acuity from 1.38 logarithm of minimum angle of resolution to 1.13 logarithm of minimum angle of resolution. Complications included four cases of cystic bleb formation and one case of choroidal detachment and explantation for hypotony.
Ahmed valve placement through the pars plana during vitrectomy is an effective option for managing complex cases of glaucoma without the use of the pars plana clip.
评估在伴有后节疾病的青光眼的治疗中，联合使用经睫状体平坦部玻璃体切割术和 Ahmed 阀植入的改良技术行睫状体平坦部 Ahmed 阀植入的安全性和有效性。
39 只患有伴有后节疾病的青光眼的患眼接受了联合经睫状体平坦部玻璃体切割术和 Ahmed 阀植入的手术。所有的阀门均采用改良技术，无需使用睫状体平坦部夹，使用巩膜贴片移植物，放置在睫状体平坦部。
24 只诊断为新生血管性青光眼的患眼，眼压从 37.6mmHg 改善至 13.8mmHg，最佳矫正视力从 2.13 最小分辨角对数改善至 1.40 最小分辨角对数。15 只诊断为激素诱导性青光眼的患眼，眼压从 27.9mmHg 改善至 14.1mmHg，最佳矫正视力从 1.38 最小分辨角对数改善至 1.13 最小分辨角对数。并发症包括 4 例囊泡形成和 1 例脉络膜脱离，并因低眼压而取出植入物。
在玻璃体切割术中通过睫状体平坦部植入 Ahmed 阀是一种有效的治疗方法，可用于处理复杂的青光眼病例，而无需使用睫状体平坦部夹。
