Autorefractor

$A United States Navy optometrist technician using an autorefractor during a humanitarian assistance project in Nicaragua in 2008$

An autorefractor or automated refractor is a computer-controlled machine used during an eye examination to provide an objective measurement of a person's refractive error and prescription for glasses or contact lenses. This is achieved by measuring how light is changed as it enters a person's eye.

单词	Autorefractor
释义	Autorefractor 英语百科 Autorefractor $A United States Navy optometrist technician using an autorefractor during a humanitarian assistance project in Nicaragua in 2008$ An autorefractor or automated refractor is a computer-controlled machine used during an eye examination to provide an objective measurement of a person's refractive error and prescription for glasses or contact lenses. This is achieved by measuring how light is changed as it enters a person's eye.
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