Geezer
Parsimonious Curmudgeon
I like the frenel lens idea. If ll you need is to magnify your mp pocket or GPS, these sheets that Andre pointed to might be just the ticket. And they're ony $2 so you aren't risking much.
I need my glasses full time these days so I wear polycarbonate lenses which have variable focus and they darken when exposed to UV.
I need my glasses full time these days so I wear polycarbonate lenses which have variable focus and they darken when exposed to UV.