The Central Retinal Vein is a major blood vessel in the eye that carries deoxygenated blood away from the retina. It collects blood from smaller veins in the retina and drains into the internal jugular vein. Proper functioning of this vein is essential for maintaining healthy vision. Blockage of the Central Retinal Vein can lead to a condition known as Central Retinal Vein Occlusion (CRVO), which may cause vision loss. This blockage can occur due to various factors, including high blood pressure, diabetes, and other vascular diseases. Early detection and treatment are crucial for preserving vision.