Prescription AnalysisQuestion 38 of 100
Segment height is best defined as what?
a.The vertical distance from the lowest point of the lens to the top of the segment line
b.The horizontal distance between segments
c.The width of the bifocal
d.The pantoscopic tilt
Explanation
Segment height is measured vertically from the lowest edge of the lens (or the deepest part of the eyewire) up to the top of the segment line, positioning the reading area correctly.
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