H34.839

Clinical Causes: Atherosclerosis: Build-up of fatty deposits in the arteries that surround retinal veins can lead to compression and blockage. High blood pressure (hypertension): Elevated pressure can damage blood vessels, increasing the risk of occlusion. Diabetes mellitus: Diabetes can cause damage to the blood vessel walls, making occlusion more likely. Glaucoma: Increased intraocular pressure may impact blood flow in retinal vessels. Blood clotting disorders: Conditions that increase clot formation can obstruct retinal veins. Vascular inflammation: Inflammation of blood vessels may lead to blockages. Age: Incidence increases with advancing age due to vascular changes. Other factors: Obesity, smoking, and certain genetic predispositions can also contribute.

Key Symptoms: Sudden or gradual loss of vision in part of the visual field. Blurred vision or visual distortion. Gray or dark shadow in the field of vision. Visual field defects that may affect central or peripheral vision depending on the location of the occlusion. No symptoms in some individuals if the occlusion is small or asymptomatic.

Diagnosis Path: Fluorescein angiography: To visualize blood flow within retinal vessels. Optical coherence tomography (OCT): To assess retinal thickness and identify edema or hemorrhages. Visual acuity tests: To determine the degree of vision impairment. Amsler grid test: To detect visual distortions or blind spots.

Treatment Protocols: Observation: Regular monitoring if the condition is mild and stable. Anti-VEGF (vascular endothelial growth factor) injections: To reduce retinal swelling and improve vision. Steroid injections or implants: To decrease inflammation and associated edema. Laser therapy: Focal or grid laser treatments to seal leaking blood vessels or reduce swelling. Management of underlying conditions: Blood pressure control, blood sugar management, and lifestyle modifications. Addressing risk factors: Quitting smoking, controlling cholesterol, and maintaining a healthy weight.