Intraocular Pressure Control after Implantation of an Ahmed Glaucoma Valve in Eyes with a Failed Trabeculectomy.
J Curr Glaucoma Pract
; 10(3): 97-103, 2016.
Article
em En
| MEDLINE
| ID: mdl-27857489
ABSTRACT
AIM:
To evaluate the results of Ahmed glaucoma valve (AGV) in eyes with a failed trabeculectomy. MATERIALS ANDMETHODS:
This retrospective study evaluated 61 eyes with a failed trabeculectomy that underwent implantation of an AGV due to uncontrolled intraocular pressure (IOP) on maximal medical therapy. Success was defined as IOP ≤ 21 mm Hg (criterion 1) or 20% reduction in IOP (criterion 2) with or without antiglaucoma medications. Persistent hypotony, loss of light perception, and reoperation for IOP control were defined as failure.RESULTS:
Mean preoperative IOP and mean lOPs at 6, 12, and 24 months were 21.93 ± 6.32 mm Hg (n = 61), 14.15 ± 4.33 mm Hg (n = 59), 13.21 ± 4.44 mm Hg (n = 56), and 13.60 ± 3.27 mm Hg (n = 25) respectively. Mean number of antiglaucoma medications preoperatively and at 6, 12, and 24 months was 3.95 ± 0.85, 2.19 ± 1.38, 2.48 ± 1.44, and 2.40 ± 1.32 respectively. The reductions in the number of medications and IOP measurements were statistically significant at all time intervals (p < 0.001, Wilcoxon signed rank test). According to criterion 1, the Kaplan-Meier survival curve disclosed success rates of 75% at 12 and 24 months. According to criterion 2, the success rates were 57% at 12 months and 55% at 24 months. The most frequent complications were hypertensive phase (18%) and shallow anterior chamber (16.4%).CONCLUSION:
The AGV may effectively reduce IOP in eyes that had a failed trabeculectomy. CLINICALSIGNIFICANCE:
The AGV is an alternative in eyes with a failed trabeculectomy. HOW TO CITE THIS ARTICLE Schimiti RB, Abe RY, Tavares CM, Vasconcellos JPC, Costa VP. Intraocular Pressure Control after Implantation of an Ahmed Glaucoma Valve in Eyes with a Failed Trabeculectomy. J Curr Glaucoma Pract 2016;10(3)97-103.
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Bases de dados:
MEDLINE
Tipo de estudo:
Observational_studies
Idioma:
En
Revista:
J Curr Glaucoma Pract
Ano de publicação:
2016
Tipo de documento:
Article
País de afiliação:
Brasil