Prescription Snorkeling & Scuba Masks
If you need glasses to see and you enjoy snorkeling, a snorkel mask with optical lenses will help you see under water. They are regular masks, fitted with special lenses. There are many types of Rx scuba and Snorkel Masks
1 Custom Ground Lenses
A Snorkel mask customized for your eyesight require a visit to an optician. If you already have a prescription, the mask can be made and delivered. It usually takes 14 to 21 days to receive your mask. This mask usually costs $250 to $350 depending on the RX. This type of prescription mask will give you the best optical view. Custom ground lenses are the best choice of snorkelers or divers with a strong agstimatism. (cylinder readings of over plus or minus 1)
2 Pre-made Inserts Lenses
Just like you can buy magnifying reading glasses from the drug store without a prescription, you can buy magnifying snorkel mask without a prescription. They come in a select number of strengths at scuba and snorkel gear retailers. Prescription lens inserts can be added to a regular snorkel mask as an alternative to creating custom mask. While custom prescription snorkel masks are made to improve your vision, so are the pre-made insert lenses The lenses are measured in diopters in .5-meter increments. Negative diopters indicate nearsightedness, positive numbers indicate farsightedness, and zero is neither.