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Phoropters & Refracters

PHOROPTERS & REFRACTORS

The phoropter is an ophthalmic testing device, also called a refractor. It is commonly used by eye care professionals during an eye examination, and contains different lenses used for refraction of the eye during sight testing, to measure an individual's refractive error and determine his or her eyeglass prescription. It also is used to measure the patients' phorias and ductions, which are characteristics of binocularity. Some popular brands are Reichert, Topcon, Marco, Nidek and Ezer.