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Why are your eyeballs filled with fluid?

Dr. Michael Roizen, MD
Internal Medicine
To give the eyes their squishy shape, your eyeballs contain a lot of fluid. Without fluid, your eyeballs would collapse-almost like a beach ball without air. The fluid constantly circulates in and out of your eye and is filtered through a mesh-like covering, like a window screen. Behind your eyeball, there's a lot of fat; that's what pushes your eyes forward.
YOU: The Owner's Manual, Updated and Expanded Edition: An Insider's Guide to the Body that Will Make You Healthier and Younger

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YOU: The Owner's Manual, Updated and Expanded Edition: An Insider's Guide to the Body that Will Make You Healthier and Younger

Between your full-length mirror and high-school biology class, you probably think you know a lot about the human body. While it's true that we live in an age when we're as obsessed with our bodies as...

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.