I was diagnosed with Type 2 about two years ago, I guess, and I've had one diabetes-focused ophthalmic examination since then. She found no retinopathy, "senile cataracts" at a stage which I understood that I was supposed to ignore for the moment, and some kind of asymmetry in (or between) the optic nerves which I also decided to ignore for the nonce.
My questions are:
1. What is the PDR which everyone here discusses? The DR is easy enough, but what is the P?
2. Will keeping my blood glucose well controlled defer or limit the chances of retinopathy? Online references to details might be a help.