Central Retinal Vein Occlusion (CRVO) is a condition where the main vein in the retina becomes blocked. This blockage can lead to fluid buildup and bleeding in the retina, causing vision problems. Symptoms may include sudden vision loss or blurred vision in one eye. CRVO is often associated with underlying health issues such as hypertension, diabetes, or glaucoma. Diagnosis typically involves a comprehensive eye exam and imaging tests. Treatment options may include medications, laser therapy, or injections to reduce swelling and improve vision. Early detection is crucial for better outcomes.