I'm diabetic, and have my annual retinal (and foot) screening. As for eye tests, I haven't needed a new prescription for at least 15 years. I do have to take my glasses off these days for reading and other close work (not the PC screen, though), so I may benefit from bifocals or varifocals - but I can't justify the expense. I did get a pair of glasses for close work a few years ago, but didn't find them to be much help in practice.

As I can easily read car number plates, road signs and the like, I cannot see any advantage in having anything other than the annual retinal screening. If something were to change, then I might.

I. too, am somewhat light-sensitive (always drive with the sun visor down!), and find Polaroid clip-on sunglasses to be adequate. I don't think the expense of 'varilux' prescription lenses would be something I'd consider.

As for my feet, I visit the podiatrist every three months - it's great having a pedicure...!