Retinal vein occlusion

Medical condition involving blockage of the veins carrying blood away from the retina

Retinal Vein Occlusion
Synonyms	N/A
Pronounce	N/A
Specialty	N/A
Symptoms	Sudden vision loss, blurred vision
Complications	Macular edema, neovascularization
Onset	Sudden
Duration	Variable
Types	N/A
Causes	Blockage of retinal veins
Risks	Hypertension, diabetes, glaucoma, smoking
Diagnosis	Fundoscopy, optical coherence tomography
Differential diagnosis	N/A
Prevention	N/A
Treatment	Laser therapy, anti-VEGF injections
Medication	N/A
Prognosis	Variable, depends on severity
Frequency	Common in older adults
Deaths	N/A

Retinal vein occlusion (RVO) is a medical condition where the retinal vein becomes blocked, leading to a backup of blood and fluid in the retina. This can result in sudden vision loss or blurred vision.

Types

RVO is classified into two main types:

• Central Retinal Vein Occlusion (CRVO): Involves the main vein of the retina.
• Branch Retinal Vein Occlusion (BRVO): Involves one of the smaller branches of the retinal vein.

Symptoms

The primary symptoms of RVO include sudden vision loss or blurred vision. The severity of symptoms can vary depending on the extent of the blockage and the area of the retina affected.

Risk Factors

Several risk factors are associated with RVO, including:

• Hypertension
• Diabetes
• Glaucoma
• Smoking
• Hyperlipidemia

Diagnosis

RVO is diagnosed through a comprehensive eye examination, which may include:

• Fundoscopy
• Optical coherence tomography (OCT)
• Fluorescein angiography

Complications

Complications of RVO can include:

• Macular edema
• Neovascularization
• Vitreous hemorrhage

Treatment

Treatment options for RVO aim to manage symptoms and prevent complications. These may include:

• Laser therapy
• Anti-VEGF injections
• Corticosteroid injections

Prognosis

The prognosis for individuals with RVO varies. Some may experience significant improvement in vision with treatment, while others may have persistent vision problems.

See also

• Retinal artery occlusion
• Macular degeneration
• Diabetic retinopathy

External links

• American Academy of Ophthalmology - Retinal Vein Occlusion