Originally Posted by
Roy R. Ferguson
We recently analyzed two years of practical exam results for dispensing opticians.
64% could not measure the distance between horizontal prism reference points.
60% could not calculate vertical imbalance in an eyeglass prescription.
57% could not determine which lens to slab-off.
53% could not measure prism thinning in a progressive lens.
50% could not determine the add power for a visible bifocal.
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