What is Corneal nebula?

A corneal nebula, also known as a corneal arcus, is a gray or white opaque ring that forms in the peripheral cornea of the eye. It is typically associated with aging but can also be indicative of elevated cholesterol levels in younger individuals. The condition is often benign and does not usually affect vision, though it can signal the need for further evaluation of lipid levels. Regular eye examinations can help monitor its development and any potential underlying health issues.