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Redness of the eye

  1. Feb 15, 2006 #1


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    When I get tired it looks like the blood vessels in my eye swell up, why? Are they in the sclera?
  2. jcsd
  3. Feb 15, 2006 #2
    No those are in the conjunctiva. When you get tired you may tend to blink less and your eyes begin to get dry(especially if you are a contact lens wearer)
  4. Feb 16, 2006 #3


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    Wow is that why! No way!
  5. Feb 17, 2006 #4


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    Do you find that you rub your eyes when you are tired? Irritation such as this can also cause swelling of the vessels in the conjunctiva.:bugeye:
  6. Feb 17, 2006 #5
    Once your eyes have begun to dry out the blink rate increases to compensate. Since the cornea has no blood vessels it must get its O2 and nutrients from the tears and aqueous.
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