Like "50" I also use the Cocoon's when needed due to 'side glare.' The norm is a Costco clip-ons over the normal lens. Works just fine, but I wish I could find a set in 'yellow' for over cast days.
As for a separate set of Prescription Pollies, they're DAMNED EXPENSIVE!
Save for you spend a heck of a lot of time on the water (boating as an example) ..... don't bother.
Just my .02 cents.