Ocean Reef Optical Diopter Lens

Ocean Reef Optical Diopter Lens

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Ocean Reef Optical Diopter lenses are designed as a drop-in corrective lens that fits Ocean Reef Optical Lens Support Frame.  These are an inexpensive alternative to custom prescription corrective lenses.

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Ocean Reef Optical Diopter Lens

If you're a diver or snorkler who wears glasses, drop in diopter lenses can be an inexpensive alternative to custom-ground prescription corrective lenses.

Your Rx for your eyeglass will help determine the power correction you will need.

OS -2.50 075 136   +2.00 31.5
OD -3.00 100 025   +2.00 31.5


What does all this mean:

  • OS - Left Eye
  • OD - Right Eye
  • SPH (Sphere): The strength of your Rx expressed in diopters.  Pay close attention to the plus (+) or minus (-) signs.
  • CYL (Cylinder): The numbers show the strength of your astigmatism. If you see SPH or Sphere then you do not have an astigmatism.
  • AXIS: Rotation to correct your astigmatism
  • ADD: If you have a bifocal this is the amount of power to be added
  • PD (Pupillary Distance): Measurement in mm between the center of your pupils.  There are 2 common ways it can be written - PD:31.5/31.5 (like show above) or PD: 63

Ordering Tips:

  • SPH: If you have a quarter diopter (.25) then we recommend you go down and a three quarter diopter (.75) then go up.  For example: -2.75 should go to -3.0.  Pay close attention to the plus (+) or minus (-) signs.
  • CYL & AXIS:  If your Rx shows that you have an astigmatism then you will most likely want to have a custom lens made that matches your Rx.  You can contact us for options or take the Ocean Reef Optical Lens Support Frame to your trusted optician to purchase and fit the type of corrective lens you will need

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