Prism 'Only at Near'

By Ed Muller, Mark Mattison-Shupnick
Monday, October 8, 2012 2:28 PM Ever get that request from the doctor? Ed M. just sent me this Rx and we discussed how a FT45 (available from Younger Optics) could be used to deliver the prism at near only. In this Rx, 2.5Δ (prism diopters) Base In is wanted in each lens.