How do I determine 20/25 at 26 inches?
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I've had a IOL implant and the manufacturer expects 20/25 through to as close as 26 inches... but I'm not sure how to even measure this... the big wall chart is meant to be read from 10 feet and I have near chart but it says to read it from 14 inches... so how do you test this a result from 26 inches?
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