1. Epithelium: This outermost layer is a stratified squamous epithelium that provides a barrier against debris and pathogens. 2. Bowman's Layer: A tough, acellular layer that provides structural support. 3. Stroma: This thick, collagenous layer constitutes about 90% of the cornea’s thickness and provides transparency and strength. 4. Descemet's Membrane: A thin but strong layer that acts as the basement membrane for the endothelium. 5. Endothelium: A single layer of cells that maintains corneal transparency by regulating fluid and solute transport.
