Cornea & surface
Cornea
Reference only in this view
The cornea is the transparent, avascular, dome-shaped anterior refracting surface of the eye, providing roughly two-thirds of its total refractive power while serving as a protective mechanical and infectious barrier.
This reference entry has no independent geometry in the current model. No other structure is substituted for it.
Reference notes
Editorial draftThe cornea is a transparent, avascular connective-tissue dome set into the sclera at the limbus, forming the anterior wall of the eye. It is classically described as five layers from anterior to posterior: epithelium, Bowman layer, stroma, Descemet membrane, and endothelium. It is more steeply curved than the sclera, with a smaller radius of curvature (~7.8 mm anteriorly), and its central optical zone provides the eye's principal refracting surface. Nutrition is derived from the tear film, aqueous humor, and the perilimbal vascular arcades rather than intracorneal vessels.
Existing notes are retained for review. Their clinical claims have not been independently verified.
Human Reference AtlasOpen source anatomy · CC BY 4.0