National Opticianry Competency Examination (NOCE)

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When using a pupilometer to measure a patient's monocular pupillary distance (PD) for a progressive lens order, what is the correct reference point for the measurement?

From the center of the bridge of the nose to the temporal limbus of each eye. From the center of one pupil to the center of the other pupil. From the center of the bridge of the nose to the center of the pupil for each eye individually. From the nasal limbus of one eye to the temporal limbus of the other eye.

Correct Answer:

From the center of the bridge of the nose to the center of the pupil for each eye individually.

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