What Are Eyeballs Made Of?

Go to for a free trial and use the offer code SCISHOW to support this channel and save 10% off your first purchase of a website or domain. Eyeballs are unique organs, providing many animals with the ability to interpret the light waves in the world around them, but what are these squishy parts made of? Hosted by: Hank Green ---------- Support SciShow by becoming a patron on Patreon: ---------- Dooblydoo thanks go to the following Patreon