The Ocean Design Opti Mask is a unique, low cost alternative to traditional corrective lens masks. Instead of replacing the clear/plano mask lenses, negative dioptre or bifocal corrective lenses snap-on to each side of the mask.
Great for Scuba Diving and Snorkelling. Fits Small to Large Adult Faces
Ocean Design Opti Mask Features:
- 2-window design for sharp looks and maximum field of view
- Fits small to large adult faces
- Accepts negative and bifocal snap-on corrective lenses
- Negative: -2.0 to -6.0, step 0.5
- Positive: not available
- Bifocal: +1.5 to +3.5, step 0.5
Two Snap-on Corrective Lenses are included in the price.
Negative dioptre lenses for those with near-sighted or myopic vision are available in:
-0.5 dioptre increments from -2.0 to -6.0.
Bifocal lenses for gauge reading are available in:
+0.5 dioptre increments from +1.5 to +3.5.
Black frame, Black skirt
Translucent Blue frame, Clear skirt
Translucent Red frame, Clear shirt
Why Black Skirt Diving and Snorkelling Masks Are Better
Clear silicone skirts on diving and snorkelling masks are popular because they minimise the claustrophobic feeling some people get when they wear a mask. Nevertheless, clear skirts actually interfere with vision. Extraneous light entering through the clear skirt makes it more difficult for the eye to focus and causes reflections that obscure vision. Demonstrate this by looking out a window from a lighted room at twilight. You will see better by cupping your hands around your eyes as you press your face to the window. For these reasons, knowledgeable divers and snorkellers seeking the best possible vision prefer masks with black silicone skirts.