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There are *yellow* sunglasses, which I initially couldn't figure out at all. They actually seem to make everything brighter. Who wants that? But then I learned that they were for night driving. Tried them --- and they *really* help. They DO make everything a bit brighter .... which makes the pupils of the eye contract, and therefore the muscles *around* the eye can relax and stop squinting. The muscles are trying to do all the work themselves, and these yellow sunglasses let the muscles relax.
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