The 2 lenses lock together with a "click" then create a suction onto the glass.
Vision adaptability
Corrective lens for short-sightedness.
Flexibility
Each lens is independent in order to correct each eye separately.
TECHNICAL INFORMATIONS
Optical correction
These lenses correct myopia. They do not correct astigmatism. They are available in the prescriptions: 0, -2, -3, -4, -5 et -6. Each lens is independent in order to adapt to each eye. The optical correction may not be perfectly adapted to your sight. This is not a problem and is not dangerous when exercising for 2 hours, provided that it is as close to your correction as possible. In case of doubt, seek your optician's advice.
I purchased right and left lenses to use in my Easybreath. Closest match to my prescription was -5.
The right and left lens click together and are secured in the mask with a suction cup. The ‘glasses’ are easy to fit and adjust to the right position.
The result was fantastic. I could see!
What a brilliant idea - much safer than snorkelling whilst wearing contact lenses (which is not recommended).
1
It seemed essential to us to design corrective lenses for those nearsighted to allow a full observation of the coastal seabed with the Easybreath.