What is a refraction?
Refraction is a test by which your optometrist can determine which lens combination will help you to see the best. Refraction can be done in a number of ways. The method with which you may be most familiar is when the optometrist holds up a number of lenses and asks you which gives you the best vision, or visual acuity, this is a subjective refraction. Tests of refraction therefore are not tests of visual acuity but tests designed to establish your prescription.
We recommend you seek professional advice if you are concerned about your eyeBook an eye test
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