Hello everyone. I can't find the answer to my question anywhere and I need some help. I have a pt who is a SVD and has and rx of +1.75 -0.50 176 2BI prism and +0.50 w/2BI prism. The OD eye measures 35 at infinity on a pupilometer and moves to a 33 when the OS is occluded. Pt's OD eye tends to wander due to a medical event. Which PD should I use the for the OD, 33 or 35, and why please? My instinct was to use the 35 since that's how his eye tends to go towards as most people aren't walking around with one eye closed.