Has anyone slightly changed their PD for their differentials? I’m curious about this, as I have slight discomfort at near distance and wonder if this is worth a try. The biggest potential problems would probably be that looking into the distance would create prism/distortion of the type that I don’t need, and I wouldn’t be able to reuse the glasses as normalized later on.
Opticians apparently debate things like this among themselves, and there are multiple schools of thought, with arguments for and against both ways.
I’m just thinking, I have an intensive, full-day electronically administered exam in my future, and am trying to get the glasses sorted out well beforehand to minimize fatigue and maximize performance.
At -2.50 SPH, and close working distances, 1mm could conceivably make a difference to both near (good) and distance (bad effect) vision and comfort. All compromise and no free lunch.
Also, @Johnn, any thoughts/experience on this, or anything from Antonia Orfield?
@jakey, any personal experience?
Disclaimer: everyone is different and there is no one size fits all; you have to try things. But I’m doing my homework first.
If anyone thinks this is a bad idea, please say why.