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