• Question: how come we cant sleep with our eyes open ?

    Asked by reanna3696 to MarkF, Mark, Michael, Panos, Sarah on 20 Jun 2010 in Categories: .
    • Photo: Panos Soultanas

      Panos Soultanas answered on 18 Jun 2010:

      Because the eyes get dried and are prone to infections. It is a kind of defense mechanism to protect our vision.

    • Photo: Mark Fogg

      Mark Fogg answered on 18 Jun 2010:

      It’s to keep your eyes moist and rubbish, like dirt and bugs, out. It also allows your eyes to rest otherwise they’d get really sore.

    • Photo: Mark Travis

      Mark Travis answered on 18 Jun 2010:

      I think some people can, can’t they? At least for a short time. You need to blink at least once in a while to moisten the eyeballs and keep them protected.

    • Photo: Michael Loughlin

      Michael Loughlin answered on 20 Jun 2010:

      too much sensory information still impacting on our brain..just like its hard to sleep if its too noisy. To switch parts of your brain to sleep mode you need to have nothing for them to focus on

    • Photo: Sarah Burl

      Sarah Burl answered on 20 Jun 2010:

      Because we need to keep our eyes wet at all times which is why we blink so much.

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