Difficulty: Easy
Instructions
Things You'll Need:
- Reading Glasses
- Sunglasses
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Step 1
Look at a normally straight object and see whether it appears bent or wavy.
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Step 2
Look for a dark, blank or blurry spot in the center of your vision.
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Step 3
Cover one eye and see whether what you're looking at changes color.









Comments
Raemonde said
on 4/14/2009 Great advice