These Optical Lenses from Fashy will help you to create your own pair of prescription swimming goggles and are available from 00 to -7 diopter. You will need to buy a specific lens for each eye which is ideal for people that need a different strength diopter for each eye. Buy 2 of these lenses along with the Fashy Optical Lens Kit (available separately) and build your own pair of goggles that will enable you to see perfectly as you swim. These lenses are tinted - ideal for swimming outdoors or in bright light.
So far I am very impressed, no fogging, very comfortable and lovely clear vision.
Very good value. Too early to see how long the anti-fogging lasts