1. Refraction is the art of improving vision without medicine or surgery.
2. Refraction and prescribing glasses are best approached as problem solving.
3. The process is more than measurement, and what we measure is not necessarily what we give.
4. History, examination, diagnosis, and treatment decisions are necessary. Just as with medical problems, history plays a large role in determining what will best help the patient.
5. The goal is to give the simplest system that satisfies that individual patient's visual needs.
6. The appropriate prescription is decided upon for and with each patient. Explain and always show the patient, binocularly, what you will be prescribing for them.
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Refractive error