"He went straight away to an optician and got glasses there and then over the counter, " he added.

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You can take money out of the HSA to cover hospital, doctor, dentist, orthodontist, pharmacy, lab and optician bills.

FORBES: Saving for Your Health

Not long after, in 1730, a London optician, Edward Scarlett , added rigid sidepieces that rested atop the ears.

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And although Im Dong-Hyun can barely read the big letters at the top of an optician's chart, he can hit that small, yellow circle time and time again.

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