Study of The Efficacy and Safety of Ahmed Glaucoma Valve Implantation in the Management of Pediatric Glaucoma

Background: Pediatric glaucoma is a potentially blinding disease, which is often refractive to medical treatment. The Ahmed glaucoma valve implant has a unidirectional flow restriction system that was designed to prevent postoperative hypotony while maintaining IOP greater than 8mm Hg.
Objective: To study the efficacy and safety of Ahmed glaucoma valve implantation in the management of pediatric glaucoma. 
Subjective: The present study was carried out on 20 patients with pediatric glaucoma that was not controlled with other previous glaucoma surgery.
Results: The IOP and corneal clarity was significantly improved in the two groups at 1 months till the end of follow up. While it was found that the corneal diameter and axial length show insignificant change all over the period of follow up in the two groups. The C/D ratio was significantly increase in group I after 1 months and significantly decrease from 3rd month till 12th months in group II. 
Conclusions: AGV implantation is effective in lowering the IOP in children eyes with glaucoma with corneal opacity and eyes previously operated for childhood glaucoma