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Light bends around finger

  1. Apr 1, 2013 #1
    Why does light appear to bend around my finger when I have it close to my eye? Try it with your phone/tablet. Keep the object about 2-3 inches away and put your finger to your eye, and watch the letters bend. I am aware of the property of light with gravity and everything, but why is it so noticeable around a 3 inch human finger? Is it a trick of the eye or is it real?
  2. jcsd
  3. Apr 1, 2013 #2
    Do you have both eyes open? If so, you're seeing your finger with one eye and your phone with the other eye.
  4. Apr 1, 2013 #3


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    Edge refraction.

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