Understanding the Cornea: Structure, Function, and Eye Health
Understanding the Cornea: Structure, Function, and Eye Health The cornea is the transparent, dome-shaped surface that forms the front part of the eye. It plays a crucial role in focusing vision and protecting internal eye structures. Understanding the anatomy of the cornea is essential for appreciating its function and the importance of maintaining corneal health. Anatomy of the Cornea The cornea comprises five distinct layers, each serving specific functions: Epithelium : The outermost layer acts as a barrier against dust, debris, and bacteria, while also absorbing oxygen and nutrients from tears. anatomy of cornea Bowman's Layer : A tough, transparent layer that protects the corneal stroma and contributes to corneal shape. Stroma : Making up about 90% of the cornea's thickness, the stroma consists of collagen fibers arranged in a precise pattern, providing strength, elasticity, and clarity. Descemet's Membrane : A thin but strong sheet of tissue that ser...