Are Tears Vestigial Leftovers? | David Rives
If your eyes don’t properly produce tears, you may need surgery to keep from going blind—that’s how important they are! Tears keep your eyes properly moisturized so that the surface cells can survive.
If your eyes don’t properly produce tears, you may need surgery to keep from going blind—that’s how important they are! Tears keep your eyes properly moisturized so that the surface cells can survive.
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