👉 Vitronaclia is a rare condition characterized by the presence of a blood vessel that runs parallel to the optic nerve, leading to an abnormal appearance or lack of blood flow in the retina. This condition can cause vision problems and may also be associated with other conditions such as glaucoma. It is often seen in individuals who have a genetic predisposition for this condition, as well as in those with certain medical disorders like retinopathy or neuroencephalitis.