Macular Edema Clinical Trial
Official title:
Arteriovenous Crossing Sheathotomy Versus Intravitreal Triamcinolone Acetonide Injection for Treatment of Macular Edema Associated With Branch Retinal Vein Occlusion
Branch retinal vein occlusion (BRVO) is a common retinal vascular disease occurring in a
significant number of individuals older than 50 years.The most common cause of visual
disturbance in BRVO patients is macular edema, which has been reported in 60% of patients.
Macular grid laser photocoagulation has been shown to be effective in the treatment of
macular edema arising from BRVO. Some eyes are resistant to conventional grid laser
treatment, and the conventional treatment is not useful in patients with intraretinal
hemorrhages that may interfere with laser photocoagulation. Moreover, several studies have
shown that conventional grid laser treatment for macular edema may be associated with
complications.
Intravitreal triamcinolone acetonide (IVTA) injection has recently been reported to be
effective in the treatment of macular edema of various etiologies.On the other hand,
arteriovenous sheathotomy is a surgical method suggested for treatment of macular edema in
BRVO patients, and has been reported to be efficacious in patients refractory to
conventional focal or grid laser macular photocoagulation.Both treatment modalities have
been reported to be associated with reductions in central macular thicknesses and improved
visual acuities.
The purpose of the study is to compare the efficacies of arteriovenous (AV) sheathotomy and
intravitreal triamcinolone (IVTA) injection in the treatment of macular edema associated
with branch retinal vein occlusion (BRVO).
n/a
Allocation: Randomized, Endpoint Classification: Safety Study, Intervention Model: Parallel Assignment, Masking: Single Blind (Outcomes Assessor), Primary Purpose: Treatment
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