Technology which obtains a computerized measurement of the patients refractive error.This is called the objective refraction and is used as a starting point for the patients eyeglass and contact lens prescription. This information is then refined by the patients responses to various lens options in the subjective refraction. Next, the prescription is analyzed by the doctor and a final prescription is determined using sound professional judgement. Due to the accuracy of this fine instrument more difficult prescriptions are quicker and easier to obtain. The end result is a better experience for both the patient and the doctor leading to increased patient satisfaction with their eyeglasses and contact lenses.