You’re not supposed to sleep, shower or swim with contacts. Sleep- easy. Shower-fine I imagine. But how do people who can’t see swim? I don’t see people (ie adults) wearing goggles at the beach or pool unless they’re long distance swimmers. Do people wear prescription sunglasses to lounge in the pool? Like what is the deal?
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Odd but true – you have difficulties seeing under water because the water/eye interface has a different change in refractive index to the air/eye interface, and effectively makes you long sighted. My dad was very short sighted and could see reasonably well under water without goggles. Which was probably useful as he never learned to swim…
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