Middle East African Journal of Ophthalmology

ORIGINAL ARTICLE
Year
: 2020  |  Volume : 27  |  Issue : 1  |  Page : 40--46

Safety and efficacy of ahmed valve on intractable glaucoma in Saudi population


Essam A Osman1, Norah F Alkheraiji1, Mohammad A Abouammoh2, Ahmed Mousa1, Saleh Al-Obeidan1 
1 Department of Ophthalmology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
2 Department of Academic and Training Affairs, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia

Correspondence Address:
Prof. Essam A Osman
Department of Ophthalmology, College of Medicine, King Saud University, P.O. BOX 245, Riyadh 11411
Saudi Arabia

PURPOSE: The study aims to assess the efficacy and safety of Ahmed glaucoma valve implant in eyes with intractable glaucoma and to evaluate the risk factors for failure. METHODS: A retrospective evaluation of 83 patients (117 eyes) with intractable glaucoma who underwent silicone Ahmed glaucoma valve implant was done in a tertiary care center in Riyadh, Saudi Arabia, between January 2014 and December 2016. Complete success was defined as intraocular pressure (IOP) ≤21 mmHg without medication after a minimum follow-up of 6 months. RESULTS: Eighty-three patients (117 eyes) with intractable glaucoma were evaluated. After a mean follow-up duration of 20.8 ± 3.1 (12–24) months, the overall success rate was achieved in 104 eyes (88.9%). Thirty-six eyes (30.8%) had a complete success rate, whereas 68 eyes (58.1%) had a qualified success rate. Thirteen eyes (11.1%) failed to achieve controlled IOP. The postoperative probability to fail was found to be increasing with time from 0.9% (0.9) in the 1st month to 11.1% (9.9) after 1 year. Complications included a hypertensive phase in 25 eyes (21.4%), encapsulation in 10 eyes (8.5%), hyphema in 7 eyes (6%), hypotony in 2 eyes (1.7%), and blood clots in the implanted tube in 2 eyes (1.7%). The presence of hyphema, scleral patch, and coronary heart diseases was found to increase the risk of failure after Ahmed valve implantation (P = 0.006, 0.040, and 0.014, respectively). CONCLUSIONS: Ahmed glaucoma valve implant was safe and effective in treating cases of intractable glaucoma.


How to cite this article:
Osman EA, Alkheraiji NF, Abouammoh MA, Mousa A, Al-Obeidan S. Safety and efficacy of ahmed valve on intractable glaucoma in Saudi population.Middle East Afr J Ophthalmol 2020;27:40-46


How to cite this URL:
Osman EA, Alkheraiji NF, Abouammoh MA, Mousa A, Al-Obeidan S. Safety and efficacy of ahmed valve on intractable glaucoma in Saudi population. Middle East Afr J Ophthalmol [serial online] 2020 [cited 2021 Jan 21 ];27:40-46
Available from: http://www.meajo.org/article.asp?issn=0974-9233;year=2020;volume=27;issue=1;spage=40;epage=46;aulast=Osman;type=0