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Objective Refraction

"An objective refraction is a refraction obtained without receiving any feedback from the patient, using a retinoscope or manual procedure to arrive at a prescription or auto-refractor which provides an average set of refraction results.

An auto-refractor is a computerized instrument that shines light into an eye. The light travels through the front of the eye, to the back and then forward through the front again. The information bounced back to the instrument gives an objective measurement of refractive error without asking the patients any questions."

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