01 / Location & anatomical relationships
Covering the front of the eye over the iris and pupil.
02 / Structure & organization
The cornea is transparent and normally avascular. Its organized layers and controlled hydration allow light transmission, while sensory nerves provide high sensitivity. The tear film contributes to a smooth anterior optical surface.
03 / Function
It helps focus light and protects the front of the eye.
04 / Mechanism
Its clear, curved surface bends incoming light before it reaches the lens. A tear film keeps the surface smooth. The cornea is highly sensitive, so reflexes help protect it from contact and drying.
Part of a bigger picture
The cornea belongs in our brain & senses collection. Explore the nearby parts to see how this area of the body fits together.
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Connect structure with function
The cornea supplies much of the eye's refractive power. Transparency requires organized tissue and fluid balance, not simply the absence of pigment.
Check your understanding
Locate the cornea in relation to its neighbors. Explain how the structural features described above support its function, then distinguish it from a nearby structure with a different role.
Keep learning
Continue with OpenStax Anatomy and Physiology for system-level study. This atlas is educational and has not undergone independent medical peer review.