MAR 27, 2018 07:42 PM PDT

All About Eyeballs

WRITTEN BY: Carmen Leitch

Eyeballs are a special part of our body, with many unique properties. This video discusses what they're made of: collagen. Collagen is a critical structural protein that is one of the major components of connective tissues like skin and tendons; that makes it one of the most abundant proteins in the bodies of many mammals.

The eye has a layered structure. The sclera is the outermost layer, encasing everything except for the cornea. There are several more layers under the cornea, before reaching the vitreous humor. That gel-like substance fills most of the eyeball's volume. At the back of the eyeball is the part that allows us to see: the retina.
About the Author
  • Experienced research scientist and technical expert with authorships on 28 peer-reviewed publications, traveler to over 60 countries, published photographer and internationally-exhibited painter, volunteer trained in disaster-response, CPR and DV counseling.
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