> I'm always worried about my eyes getting worse, and they have been, year after year.

Sometimes people's vision prescriptions are too strong. I started going to a 'developmental optometrist' about 12 years ago. While I don't see 20/20 with my current glasses, I tried stronger lenses from a conventional optometrist 7 years ago and found them intolerable. When he wanted to charge me for another office visit for the contact prescription, I just ordered the prescription I wanted from an internet contacts store.