The Illuminated Phoroptor® features lighted sphere, cylinder power and cylinder axis scales that are easier than ever to see. The Illuminated Phoroptor utilizes cool-running, energy efficient LEDs ...
U.S. News Insider Tip: During the era of the Grand Tour, the area around the Spanish Steps earned the nickname of the English Ghetto. Immerse yourself in the area's English past with a visit to the ...
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