The Autorefractometer
An autorefractometer (also called an auto-refractor) is a computerized machine used to measure the refractive error of the eyes โ that is, it helps determine whether a person is nearsighted (myopic), farsighted (hyperopic), or has astigmatism.Hereโs how it works and what it does ๐ How It WorksThe patient looks into the device at an image …








