My mother-in-law's company distributes them. They are manufactured by 3M and should be available from any optometrist. I've seen them and they are pretty cool, work well, can be used on lenses as small as swim goggles, and are replaceable if needed. Unfortunately, I don't know the cost. However, just ask for the 3M press-on lens distributed by Signet Armorlite.
Another option is to ask about 3M brand press-ons. They adhere to the inside of your goggles or mask and create a prescription lens for you using off the shelf gear.
prescription swim goggles
in Hawaii
Posted
My mother-in-law's company distributes them. They are manufactured by 3M and should be available from any optometrist. I've seen them and they are pretty cool, work well, can be used on lenses as small as swim goggles, and are replaceable if needed. Unfortunately, I don't know the cost. However, just ask for the 3M press-on lens distributed by Signet Armorlite.