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The cornea is a very clear transparent window at the front of the eye.
It is approximately half a millimetre thick and is primarily made up of a protein called Collagen.
There are five main layers of the cornea. The innermost layer, the endothelium, is a singer single layer of cells. Its primary function is to prevent the rest of the cornea from becoming waterlogged. It also provides it with nutrients.
The endothelium rests on a thin membrane called Descemet’s membrane. The main part of the cornea is the Corneal Stroma, which gives the cornea its rigidity.
The Bowman layer is the outermost part of the corneal stroma. It is more tightly packed with collagen. The outermost layer of the cornea, the epithelium, has layers of cells that help smooth the front surface of the cornea.
What does the Cornea of the eye do?
One of the cornea’s main roles is to transmit and focus light as it enters the eye. The cornea is the main focusing lens of the iron contributes to 2/3rds of the total focusing power of the eye.
It also helps to shield the rest of the eye from germs, dust, and other harmful matter. Cornea shares this protective task with the eyelids, the tear film, and the white part of the eye (Sclera).