RE: Poor depth perception
My everyday glasses are graduated (no line) bifocals. At the field though, I am much more comfortable wearing my flying glasses that consist of straight glasses set up for distance, with a tiny bifocal close up part in the very bottom. Tell your optometrist that you fly rc and have him write you an rx that has the bifocal part set really low and out of normal vision.
Still, I have the depth perception problems too. I think an optometrist could shed some light on the difference between someone who has problems with depth and someone who doesn't. For example there is a difference between my right and left eye.
Ernie