“outer diameter”

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drpeshalghimire.com Skip to content HomeSample Page THE EYE &why people have blue, green, brown or back eyes? Posted on September 7, 2011 by Dr Peshal Ghimire The observer?s eye is an essential part of all optical instruments. A sectional view of the human eye is shown in the picture. It is nearly spherical in shape and about2.5 cm in diameter. It has a tough outer skin called sclera, which protects the eye and gives the necessary stiffness. The sclera is linked inside with vascular