What Are Eyeballs Made Of?

The video explains the unique structure of the eye, highlighting that it is not bone but a jelly-like collagen. The sclera and cornea are discussed as protective and light-admitting layers. The iris, pupil, lens, and retina are described as key components in focusing light and enabling vision. The vitreous humor, a gel-like substance, fills most of the eye's volume, providing support and shock absorption. The aqueous humor, located in front of the lens, nourishes the cornea and maintains eye shape. The cornea receives oxygen from tears, allowing it to function without blood vessels.

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