Light micrograph of section through cornea of eye

Light micrograph of section through cornea of eye

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Credit: J.C. REVY, ISM/SCIENCE PHOTO LIBRARY

Caption: Cornea. Light micrograph of a section through the cornea of an eye, seen running diagnonally across the image. The cornea is dome-shaped transparent tissue that covers the front of the eye & focuses light entering the pupil. Its outer surface (upper centre) is squamous epithelium about 5 cells thick, which grows continuously from a basement membrane called the Bowman's membrane. Under this is dense collagenous connective tissue (wavy) that forms the bulk of the cornea. An elastic membrane (Descemet's membrane, blue) covers the inner surface. The cornea lacks blood vessels which would make it less transparent. It is nourished by fluid in the eye and oxygen in the air.

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Keywords: anatomy, bowman's membrane, cornea, descemet's membrane, eye, human body, lens, sight, structure, substantia propria, vision, visual sense

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