Corneal transparency is maintained by:
The primary mechanism controlling stromal hydration is a function of the corneal endothelium which actively pumps out theelectrolytes and water flows out passively. Endothelium consists of a single layer of flat polygonal (mainly hexagonal) epithelial cells (misnamed as endothelium) which on slit-lamp biomicroscopy appear as a mosaic.
Bowman's membrane
Endothelium
Keratocytes
Descemet's membrane
Cornea