I get to test a lot of really fun sunglasses here at Runner’s World, but there’s one big problem: I can’t read my GPS watch. So, for most runs, I usually resort to wearing prescription glasses—Zenni is my go-to for cheapies. But recently I got loaned a pair of Ray-Ban Meta AI glasses, so I needed a solution.On Amazon, I found these little optical stickers that let me turn any normal pair of sunnies into prescription readers. They just cling in place and act like bifocals.StickTite Instant Reading Lenses$20AmazonHere, I show you how easy it is to apply them using nothing more than water. And you can peel them off at any time if you want to reposition them or use them in a different pair of sunglasses.Wash your hands and sunglass lenses, then spray the StickTite Lens with water or lens cleaner.Press the lens onto the inside of the glasses and slide it into position. It should be in the lower portion, centered below your pupil.Get rid of the bubbles by pressing on the lens and sliding it in small circles.…