H34.233

Clinical Causes: Atherosclerosis (hardening of the arteries) Emboli originating from the heart or large arteries, such as blood clots or cholesterol plaques Cardiovascular diseases, including atrial fibrillation and hypertension Blood clotting disorders that increase the risk of embolism Vasculitis, which involves inflammation of blood vessels Giant cell arteritis, especially in older adults High blood pressure leading to damage of the blood vessel walls Trauma causing injury to the retinal blood vessels

Key Symptoms: Sudden loss of vision in one or both eyes Partial loss or blurring of vision Visual field defects, such as areas of missing vision Darkening or shadowing in the visual field Possible appearance of new floaters or flashes of light

Diagnosis Path: Diagnosis typically involves a comprehensive eye examination, including dilated fundoscopy to visualize the retina and identify areas of occlusion. Additional assessments may include optical coherence tomography (OCT) to evaluate retinal layers, fluorescein angiography to observe blood flow in the retinal vessels, and imaging studies like carotid Doppler ultrasound to detect sources of emboli. Blood tests may be performed to assess risk factors such as blood clotting abnormalities, cholesterol levels, and inflammatory markers.

Treatment Protocols: Treatment options focus on restoring blood flow and preventing further damage. Immediate management may involve ocular massage and lowering intraocular pressure to dislodge the embolus. Strategies to manage underlying causes include controlling blood pressure, managing cholesterol and blood sugar levels, and anticoagulation therapy if blood clotting disorders are identified. In some cases, laser therapy or surgical procedures may be employed to address specific complications. Ongoing monitoring and management of cardiovascular health are essential to reduce the risk of recurrence.