Auto Refraction


Auto refraction is a computer determined measurement of a person’s prescription. The prescription is not exact, but gives the doctor good baseline information or a starting point of the subjective refraction.

Auto refraction is a relatively quick and simple procedure. The patient sits behind the instrument and places their chin on the chin rest. They simply need to look into the instrument at a picture, which may go in and out of focus. Typically, three readings are taken and the instrument averages those readings. On an average person, the test takes 10-15 seconds to perform and no feedback is required by the patient.