DispensingQuestion 60 of 100
MPD (monocular PD) is preferred over binocular PD because it accounts for what?
a.Lens tint
b.Facial asymmetry between the two eyes
c.Frame color
d.Segment width
Explanation
Monocular PD measures each eye separately from the bridge center, correctly placing each optical center even when the face is asymmetric, which a single binocular PD split in half cannot do.
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