Do you know in which part blood doesn’t flow in human body?






The cornea is the transparent front part of the eye that covers the five different layers of the eye portion. The cornea acts as the eye's peripheral lens. Cornea helps to remove the dust, germs and other harmful objects. It helps not to flow the ultraviolent rays into the eyes. The cornea contributes   65- 75 percent of the eye's total focusing power. When light strikes the cornea it reflects back and does not allow the light flow to affect the vision of eye.

Cornea helps to determine the objects in a focused manner. If your cornea is damaged by disease, infection, or an injury, the resulting scars can affect your vision. Cornea damage leads to the blindness worldwide. Swelling of the cornea is known as Keratitis. Infection of contact lenses leads to Keratitis.

Some of the major decreases like Bullous Keratopathy, Cogan syndrome, and Cornea ulcer arise due to the infection of the cornea and improper Hygiene of eye. Dry eye is one of the major disorders which happen due to the less count of Tears in eye.

One of the problems with contact lenses is that they reduce the oxygen supply from the outside. Even with gas-permeable lenses, this can cause corneal neovascularization, where blood vessels grow into the cornea. This problem is reduced or eliminated by the newest silicone hydrogel lenses. As well as the cornea, other areas of the body that don’t have blood vessels include hair, nails, tooth enamel and the outer skin layers.

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