Have a patient with the following rx:
OD -17.50 = - 2.00 x 152
OS -16.75 = - 1.50 x 020
Refratced vertex 13.5mm
New frame vertex is about 10mm. Using Darryl's Opticampus Calculators, I come up with an rx to order of:
OD -16.49 = -1.76 x 152
OS -15.82 = - 1.33 x 020
I have had him in 1.67 bi-concave lenses in the past. In 2012, I put him in 1.74 conventional lens done by Digital Eye lab. The frame was bigger than the previous pair, 53-20 vs. 48-19. He did not like the thickness of the 2012 pair. We discussed at length what going larger does to edge thickness when he ordered that pair.
Today's frame is a compromise at 50-19. He asked about going back to bi-concave to reduce thickness. I explained the lousy vison off axis, which he understands. I would like to put him in 1.70, conventional grind, but I am finding that the power kicks me out of most power charts that I have looked at. Most stop at -16.00. I have not called labs yet to see if they can "FUDGE" the range or not.
Suggestions?*
*Please don't any of you wise guys say put him in contacts.......he has them!
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