This adaptor is for the Sundstrom Trispec SR200 Mask THIS IS FOR THE ADAPTOR PIECE ONLY - Goggle sold seperately Sundstrom Trispec 170-06352 Prescription Adaptor piece - can only accommodate Single Vision Clear lenses OR Bifocal Clear. Single Vision - for Reading OR Distance vision only Bifocal - Distance vision at the top of the lens/adaptor and the reading magnification is in the 1/2 moon segment (18mm) up from the bottom of the adaptor. An Anti-Reflective coating is highly recommended for wearers with prescriptions higher than +2.00/-2.00 due to the double-up of lenses (with the goggle over top) the AR coat will help the light pass through both lenses without it being obvious to the wearer. Please note: An AR Coat cannot be added on after an order has been processed.
