All our vision correction masks use lenses that have been manufactured in a predetermined range of diopters for either "near sighted" correction (minus values) or "far sighted" correction (plus values, aka "gauge readers"), but not both in the same lens. Our predetermined range of vision correction lenses are a great value, but unfortunately are not suitable for every diver needing vision correction and especially not those with significant astigmatism.

If our lenses do not work for you, then custom made prescription vision correction lenses are an alternative solution. Because that can be expensive, we suggest first test diving an ordinary new mask to be certain it is a good fit for your face. Send your selected mask along with your vision prescription directly to an optical company that specializes in custom making and installing dive mask lenses. Two such long established US companies are: Prescription Dive Masks in California and SeaVision USA in Florida.