14.1

Branch Retinal Vein Occlusion

Introduction:

Branch retinal vein occlusion (BRVO) is characterized by retinal hemorrhages in the territory of the obstructed vein. Macular edema, retinal ischemia and neovascularization can result, producing visual reduction.

Epidemiology:

BRVO usually occurs in patients in their fifth or sixth decades of life. The prevalence of BRVO in developed countries is estimated at just below 1%. There does not appear to be any racial or ethnic predilection. Systemic arterial hypertension is the most common systemic risk factor, present in about 75% of affected patients. The pathogenesis is believed to be disease of the adjacent arterial wall leading to venous compressesion at an arterovenous crossing point.

Clinical Features:

Patients may complain of visual blurring, distortion or metamorphopsia. On examination, intraretinal flame and blot shaped hemorrhages as seen in the territory of a dilated, tortuous retinal vein are present (Fig. 14.1.1

Only gold members can continue reading. Log In or Register to continue

Share this:

• Click to share on Twitter (Opens in new window)
• Click to share on Facebook (Opens in new window)

Related

Related posts:

1. Central Serous Chorioretinopathy
2. Myopic Choroidal Neovascular Membrane
3. Birdshot Chorioretinopathy
4. Choroidal Melanoma

Stay updated, free articles. Join our Telegram channel

Join

Full access? Get Clinical Tree