الفهرس 
Aim of the workOnly 14 pages are availabe for public view
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Abstract
This study was done to evaluate the efficiency and safety of the flexible Ahmed Glaucoma Valve implant in controlling intraocular pressure in selected cases with different types of refractory glaucomas and to find out the possible post-operative complications of its implantation and their management. Eleven eyes of 11 patients of different ages were included in this study. They were selected from patients with refractory glaucomas attending out-patient clinic of Ophthalmic Center of Mansoura University. Six were males and five were females. The pre-operative intraocular pressure was measured for each of the eyes included in the study using Goldman applanation tonometer or Schiotz tonometer. All these eyes underwent implantation of Ahmed Gloucoma Valve flexible plate implant. Then, they were followed up mainly for intraocular pressure daily for a week, then weekly for a month, then monthly for a period of six months. The total success rate of all eyes after a follow up period of six months was (90.9%) including the absolute success rate (72.71%) and the partial success rate (18.2%) The incidence of post-operative complications after Ahmed glaucoma valve flexible plate implantation was more or less similar to that recorded with other glaucoma implants. However, the incidence of post-operative complications related to excessive aqueous flow was less and more benign than those recorded with other drainage implants even the valved ones . Shallow anterior chambers occurred in one eye only (9.1%) and reformed completely within four days without intervention. Also, serous choroidal detachments occurred in one eye (9.1%) and resolved spontaneously within seven days. Moreover, eyes with an IOP below five mmHg on the first-post operative day were only one eye (9.1%) and was associated with serous choroidal detachments. During the postoperative follow -up period, there were no recorded cases with tube endothelial touch, tube retraction, tu be blockage, implant mobilization, conjunctival erosion, endophthalitis or diplopia.