Epithelium

This is the surface layer of cells.  They provide barrier function and a smoth surface for the tear film.

Bowmans Layer

A tough layer of basement membrane right under the epithelium.  This layer is tough, and keeps the retina from swelling forward....which means when the retina swells, it must do so backwards into the anterior chamber.

Stroma

Composed of highly arranged collagen fibers and supporting keratocytes, the cornea stroma provides the majority of the cornea.  Injusries at this level can scar.

Descemet's Layer

An inner layer of basement membrane.  This layer is important for the health of endothelial cells.  One of the leading needs for cornea transplant is from a dystrophy of Descemet's layer called Fuch's Dystrophy.

Endothelium

The Endothelium is a crucial layer as it works as a barrier and a pump that keeps the cornea from getting too wet.