Anatomy of the human eye. Henry gray (1825-1861): anatomy of the human body. 1918. Horizontal section, the optic nerve points to the nose. The tissue referred to as the "cornea" is actually the "hard skin of the eye", also called the "sclera". The cornea is a protective skin in front of the iris and the anterior chamber of the eye and makes a significant contribution to the overall refractive power of the eye. In addition, "iris" is another name for the iris, the tissue marked as "iris" in the drawing is the choroid.
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