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.

The Auto Refractor/Keratometers featuring the following measuring Modes;

REF: Refractive measurement

KER: Corneal curvature radius

REF/ KER: Both Refractive as well Keratometry Mode

CLBC: Contact Lens Base Curve measurement

RET .ILLUM: Retro-illumination

IOL: IOL OK

APD: Auto Pupil Distance

APM: Auto Pupil Diameter