Participants were all examined with cycloplegic refraction ... plus a third if needed). A Topcon KR-8900 autorefractor was used for autorefraction, and the mean of three measurements was used to ...
This guy built his own head resurfacing machine for less than $500 with a treadmill and an old medical gurney.
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The Cool Down on MSN
Scientists develop liquid crystals that transform ordinary windows into incredible energy hubs: 'A step forward'
Researchers in China have developed a transparent, colorless solar coating that can be directly applied to glass.
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