Lenses with cylinder power also produce a separate prismatic effect through the meridian of the lens containing the cylinder power, 90° away from the cylinder axis. If the cylinder axis is...
My perspective on this discussion. Is Opticampus applying the 10 mm decentration to the power in total listed as sphere (+5.00) and not +2.50 @ the 180 as we assume on a optical cross. Perhaps since...
I would draw the dividing line at about 8 D,...
I would draw the dividing line at about 8 D, where best form theory collapses above that power with plus power lenses.
Robert Martellaro 01-17-2021, 01:17 PMBest regards,
Robert Martellaro