Auto Refractor

The function of the cornea and lens is to collect light at a single point and focus it on a single area of the retina. If the cornea and lens can perform this perfectly, vision will be clear; otherwise, it indicates that there is a refractive error. Refraction means the bending of light, and if the cornea and lens do not perform their function correctly, a refractive error, or visual impairment, occurs. There are three types of refractive errors: myopia, hyperopia, and astigmatism. The auto refractor is a device that automatically measures these refractive errors in the eye. The measurement is completed in seconds and is safe. The patient rests their chin on the device and looks at the image inside. At this time, a button is pressed, and the measurement is taken. This measurement is an important reference when determining the glasses prescription.