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Mask Size Guide Help Page
At Oceans Optics, we understand that a proper mask fit is essential for a comfortable and safe dive. Our prescription snorkel masks and prescription scuba masks are designed to fit a variety of face shapes, and we’ve made it easy for you to find the perfect size.
What Tools Do I Need?
- Hard Ruler or Measuring Tape
- Mirror
- Pen and Paper
How Do I Measure My Face?
- Measure Face Width:
Use a hard ruler to measure from the outer corner of your eye on one side to the outer corner of your other eye. - Measure Face Height:
Measure from just below your nose up to just above your eyebrow line. - Compare Your Measurements:
Match your width and height measurements with our mask specifications below. Aim to be between Min and Max, and as close to Optimal as possible.
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About the measurements
We measured the relaxed inner seal and the gently stretched outer seal to give a realistic Min/Max window. Your goal is to sit comfortably inside that window, especially on width, so the mask seals without over-tightening the strap.
Remember to keep the measuring device straight without bending around the cxontour of your face.
Lens choice comes after fit
Pick your frame size first. Then choose lens power for your diving mask with prescription lenses using the lens calculator (find below):
Your Vision Changes Underwater
Use our FREE calculator tool to help you account for the magnification effect underwater and give you the vision as clear as day!
Step 1: Enter your prescription to determine your recommended underwater vision Underwater, light bends differently and can make your usual prescription feel too strong. We lower it slightly to prevent overmagnification and keep your vision clear
Suggested Lens Strength:
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What customers think about the store
Store specializes in quality prescription diving masks and water sports gear. Customers consistently praise fast shipping, accurate prescriptions, and excellent customer service. Products enable clear underwater vision for those with vision needs, with reliabl...