Having just completed another pair of "wrap" frames for a moderately myopic patient, I am once again pondering the effect of the tilt on the Rx.
Dragging out my copy of Optical Formulas by Stoner, I notice the note that is placed right at the end of the section on tilt that states that compensating the Rx for face form (or the pd, for that matter) is NOT recommended. Question is, "why not?" I suppose I can understand the idea of not adjusting the pd (because of the induced prism), but why not alter the Rx to compensate for the way the tilt affects it?
Illuminate me once again,
Pete
PS- I usually do adjust the p.d. by 1mm for every 4 degrees of tilt... that seems to work pretty well.
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