Which layers constitute the cornea?

The layers that constitute the cornea are best described by the choice that includes the epithelium, Bowman’s layer, stroma, Descemet's membrane, and endothelium. Each of these layers plays a crucial role in the structure and function of the cornea.

The epithelium is the outermost layer that serves as a protective barrier against environmental factors and helps in maintaining corneal hydration. Beneath the epithelium lies Bowman’s layer, a thin but tough layer that further enhances the cornea's strength and stability. The stroma, which is the thickest layer of the cornea, comprises collagen fibers that provide transparency and structural integrity, allowing light to pass through and focus properly onto the retina.

Described as another important layer, Descemet's membrane acts as a basement membrane for the endothelium and plays a key role in maintaining the integrity and hydration of the corneal stroma. The endothelium, the innermost layer, is responsible for regulating water balance and maintaining corneal clarity by pumping excess fluid out of the stroma.

This comprehensive structure is essential for the cornea's ability to transmit light and protect the eye, which is why the choice listing all five layers reflects