An autorefractor is a computer-controlled device used in eye examinations to objectively determine a person's refractive error and the need for corrective lenses. It calculates vision correction by using sensors that analyze light reflections from the retina. The device is especially beneficial for non-communicative individuals, such as children and those with disabilities.

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2. Autorefractor
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3. Autorefractor
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An autorefractor or automated refractor is a
computer-controlled machine used during an
eye examination to provide an objective
measurement of a person's refractive error
and prescription for glasses or contact lenses.

4. Autorefractor - view
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5. Autorefractor - Perform
 The majority of autorefractors calculate the vision
correction a patient needs (refraction) by using
sensors that detect the reflections from a cone of
infrared light
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6. Autorefractor - Perform
 The reflections of lights are used to determine the
size and shape of a ring in the retina which is
located in the posterior part of the eye.
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7. Autorefractor- side view
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8. Autorefractor- Refractive error
Refractive error, also known as refraction error, is
a problem with focusing light accurately onto
the retina due to the shape of the eye
The most common types of refractive error are
near-sightedness, far-sightedness,
astigmatism, and presbyopia
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Autorefractor- View

10. Autorefractor - Uses
 Automated refraction is particularly useful when
dealing with non-communicative people such
as young children or those with disabilities.
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