Sadia Bukhari, Israr Bhutto, Riffat Ghazala, Umair Qidwai, Abdul Sami Memon, Muhammad Faisal Fahim.
Ahmed Glaucoma Valve - Implantation in Children with Refractory Glaucoma, Success & Complications.
Ophthalmol Update Jan ;13(3):160-4.

Purpose: To evaluate the efficacy of Ahmed glaucoma valve (AGV) in children with refractory Glaucoma. Materials & Methods: This prospective study was carried out at Pediatric Ophthalmology Department Al-Ibrahim Eye Hospital between July 2013 to June 2014. 24 eyes of 21 patients under 16 year of age were included in the study. The main outcome measure was control of intraocular pressure (IOP) without additional medication or surgery and without serious complications like loss of vision. IOP control was defined as IOP of less than 20mmHg and more than 5mmHg at minimum follow up of 6 months post AGV implantation. Results: After Ahmed valve implantation, most of the patients, 17(70.8%) had no complications reported, while 3 (12.5%) had choroidal detachment and early hypotony. Mean IOP before Ahmed valve implantation was 38.21mmHg ± 7.962, with minimum IOP of 26 mm Hg and maximum IOP of 50 mm Hg. On first follow up after Ahmed valve surgery, mean IOP reduced to 6.87 mm Hg ± 3.25, with minimum IOP of 2 mm Hg and maximum IOP of 16 mm Hg. Final IOP during follow up period was 12.67 mm Hg ± 5.46 with minimum IOP of 8 mm Hg and maximum IOP of 32 mm Hg. Two patients had failed device with IOP rise and need further surgery. Conclusion: AGV is an effective and relatively safe method in treatment of refractory Glaucoma in children.

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