What are "episcleral veins"?

Episcleral veins are small blood vessels located on the outer surface of the sclera, the white part of the eye. They assist in draining the blood from the conjunctiva, a thin transparent layer covering the sclera. Episcleral veins are part of the ocular vascular system and play a role in regulating the blood flow and pressure within the eye. They can be visualized during certain eye conditions or diseases, and their examination may provide important diagnostic information for eye health professionals.