I'd like to suggest a humble addition to your tentative opticianry skill set criteria:
The ability to order *correctly* the "same" Rx/pair of eyeglasses (including uploading a frame tracing, POW measurements and specifying prism, EQ/Rev EQ, base curve and OC position) across 5 five different electronic lens ordering portals.
THIS...IMHO is a newer but essential skill for today's opticians.
(Spoiler: I can't say I've "mastered" it completely yet...and I do it everyday!)
Discussion.
Barry
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