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Sclera vs. Cornea — What's the Difference?

Sclera vs. Cornea

Difference Between Sclera and Cornea

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Sclera

The sclera, also known as the white of the eye or, in older literature, as the tunica albuginea oculi, is the opaque, fibrous, protective, outer layer of the human eye containing mainly collagen and some crucial elastic fiber. In humans, and many other animals, the whole sclera is white, contrasting with the coloured iris, but in some other mammals the visible part of the sclera matches the colour of the iris, so the white part does not normally show.
May 16, 2022

Cornea

The cornea is the transparent front part of the eye that covers the iris, pupil, and anterior chamber. The cornea, with the anterior chamber and lens, refracts light, with the cornea accounting for approximately two-thirds of the eye's total optical power.
May 16, 2022

Sclera

The white outer layer of the eyeball. At the front of the eye it is continuous with the cornea.
May 16, 2022

Cornea

The transparent convex anterior portion of the outer fibrous coat of the eyeball that covers the iris and the pupil and is continuous with the sclera.
May 16, 2022

Sclera

The tough white fibrous outer envelope of tissue covering all of the eyeball except the cornea. Also called sclerotic, sclerotic coat.
May 16, 2022
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Cornea

(anatomy) The transparent layer making up the outermost front part of the eye, covering the iris, pupil, and anterior chamber.
May 16, 2022

Sclera

(anatomy) The white of the eye; the tough outer coat of the eye that covers the eyeball except for the cornea.
May 16, 2022

Cornea

The transparent part of the coat of the eyeball which covers the iris and pupil and admits light to the interior. See Eye.
May 16, 2022

Sclera

Whitish fibrous membrane (albuginea) that with the cornea forms the outer covering of the eyeball
May 16, 2022

Cornea

Transparent anterior portion of the outer covering of the eye; it covers the lens and iris and is continuous with the sclera
May 16, 2022

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