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Branch retinal vein occlusion associated with vitreoretinal traction
T Mark Johnson1, Christopher W Vaughn, Bert M Glaser
1The National Retina Institute, Chevy Chase, MD 20815, USA. mjohnson@bmgnri.com
Summary
Vitreoretinal traction may contribute to branch retinal vein occlusion (BRVO) development. This case series suggests that traction, not just arteriovenous crossing, plays a role in BRVO pathogenesis.
Area of Science:
- Ophthalmology
- Retinal Diseases
- Vascular Disorders
Background:
- Branch retinal vein occlusion (BRVO) is commonly associated with arteriovenous crossing sites.
- The role of vitreoretinal traction in BRVO pathogenesis is not fully understood.
- Surgical interventions for BRVO exist, but successful outcomes may depend on vitreous detachment.
Observation:
- A retrospective review of three patients with BRVO and evidence of vitreoretinal traction was conducted.
- Patients presented with mild vitreous hemorrhage and linear intraretinal hemorrhages.
- Diagnostic imaging revealed partial avulsion of the affected venous segment.
Findings:
- Vitreoretinal traction was observed at the site of venous occlusion in all patients.
- Fluorescein angiography showed delayed venous flow and blocked fluorescence due to hemorrhage.
- Clinical examination, B-scan ultrasound, and OCT confirmed partial venous avulsion.
Implications:
- Vitreoretinal traction may be a significant contributing factor in the development of BRVO in select cases.
- Understanding the role of vitreoretinal traction could refine treatment strategies for BRVO.
- Further research is warranted to elucidate the precise mechanisms linking vitreoretinal traction and BRVO.
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