الملخص الإنجليزي
Objectives: Retrospective study to evaluate the short term
outcome and contributing prognostic factors of trabeculectomy
in terms of intraocular pressure in Omani patients of South
Batinah region with primary open-angle glaucoma.
Methods: This study involved retrospective evaluation of 18
patients (22 eyes) with primary open angle glaucoma who
underwent primary trabeculectomy between February 2005
and February 2008. All patients were aged over 40 years and
were Omani. Follow-up for all subjects lasted at least 6 months
or more [Average follow up 388 days with standard deviation
of 182]. Successful control of Intraocular pressure (IOP) was
defined as achieving IOP of 21 mmHg or less without medication
(complete success).
Results: The results are presented with particular emphasis
being placed only on intraocular pressure (IOP) control. The
tonometric success rate of trabeculectomy in controlling the
IOP at 21mmHg or less without any medication was 46%
[complete successes], 18% had qualified success [Post operative
IOP 21 mm Hg or less with one topical medication], while 36%
trabeculectomies failed to show desired results.
Conclusion: The results of this retrospective study underline
that the procedure of trabeculectomy has moderate success in
controlling the intra ocular pressure in the study population. The
procedure failed to show the desired result in almost one third of
the patients (36%) and topical medical treatment was reinstated
in these patients with either two or three drugs. However these
results lead to the following question: Should trabeculectomy be
the therapy of first choice in the early stage of glaucoma?
