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March 1, 2013

Strange But True!

Q. Maybe you're lucky enough to have 20/20 vision but how about your dog?

A. If at a distance of 20 feet from a Snellen Eye Chart, you can read down to the same line of letters that someone with normal vision can read at 20 feet, then you have 20/20 vision, says Stanley Coren in “Do Dogs Dream? Nearly Everything Your Dog Wants You to Know.” To test a dog, it is given a treat if it correctly picks the striped pattern when it is shown side-by-side striped and uniformly gray patterns. Then the stripes are made narrower and narrower — like making the letters smaller on the human eye chart — until eventually the dog can no longer reliably make the correct choice.


 
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