I can say without doubt that my eyes are very very sensitive. Won’t go into the reasons why but there are some.
The reflective coating? Get it. Well worth the $$. You will notice it not only in what you can see, but also when your photo is taken. You can actually see you eyeballs in pics when you get it, while you’ll just see reflection when you don’t.
Scratch resistance? Hard to tell because I’m much easier on my lenses now that I’m older. But I can tell you this: I never get new glasses because of scratches now that I get scratch resistance. I get new glasses cuz the frames wear out. Also note that using lense wipes with SOFT rubbing is the way to go.
Bifocals versus progressive? Progressive without a doubt!!! And insist on Varilux without a doubt. The narrow part of the hourglass is MUCH wider on Varilux and that is very, very important. I have zero adjustment time with Varilux while other brands cause me to have weeks or even worse *never* adjustment time.
This stuff does matter. Your eyes are very important. Don’t skimp.