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Before taking any measurements, make sure the patient is sitting straight, without any back support.
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Adjust the frame to correctly fit the patient.
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Ensure a pantascopic tilt of 10"-12".
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Minimize the vertex distance by fitting the frame as close to the face as possible. This will ensure a wide field of vision at all ranges.
Be aware that the PD can differ from eye to eye.
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When using a pupilometer for measuring pupil distance, verify the result through a manual test.
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If a pupilometer is not available:
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Position yourself at the patient’s eye level, making sure he is looking directly into your eyes.
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Mark the pupil center on the demo lens in the frame.
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Place the demo lens on the centration chart and read the monocular PD.
Be aware that the fitting height can differ from eye to eye.
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Position yourself at the patient’s eye level.
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Mark the pupil center on the demo lens in the frame.
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We recommend a minimum fitting height of 19 mm.
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Check both the right and left lenses.
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Align the pupil center marking over the cross on the centration chart.
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Make sure the frame shape falls within the selected lens diameter.
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If lenses are not marked, restore the markings with the Creation marker.
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Fit the completed glasses on the patient and verify that the fitting cross is aligned with the pupil center
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