I have a script from a local OD for a young boy.
+1.75 sph OU, 0.5 BI OU. There is a note that says to use ground-in prism only.
I would NOT decenter an aspheric lens for prism, but I do not personally see any difference between ground-in prism versus decentered prism using a stock spherical lens. I wanted to consult with you all before moving forward, however. I called to check with the OD and when I told her there wasn't any difference, she said "oh yes there is, optically in the lens."
What do you think? I can get a stock lens in the appropriate blank size so we won't end up with excess thickness.
Do you see something I don't see? How would the doctor know if I cut these out from a lens that has the OC in the center or slightly (2.8 mm) away from the center?