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See clearly whether you’re nearsighted (−) or farsighted (+). Every model here...
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See clearly underwater with nearsighted prescription dive masks. Minus diopters in 0.50...
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Prescription Dive Masks for Hyperopia and Presbyopia See clearly underwater with plus-power...
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Ever tried to enjoy a reef while everything is just… a bit...
How would you like to find your mask fit?
Choose automatic camera measuring or follow the manual ruler guide below
Point your front camera at your face. Our tool measures you automatically in seconds, with no ruler needed.
- ✓ Takes about 30 seconds
- ✓ Works on phone or desktop
- ✓ Get instant mask recommendations
Prefer to measure yourself with a ruler or tape? Follow our step by step guide.
- ✓ No camera needed
- ✓ Works anywhere
- ✓ Fine-tune with sliders
why you need a
Prescription Dive & Snorkel Mask
If you wear glasses or contacts, and plan to go snorkeling or diving, a prescription mask is an essential item.
Our lenses are closely matched to your prescription, so you can actually see when you’re in the water.
• Skip risking eye infections with contacts
• Skip gross rental masks
And definitely skip not seeing the turtle that everyone else got to see.
Our RX masks give you crisp vision and confidence from the moment you put them on.
Nearsighted Vs Farsighted, Which one am I?
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Nearsighted/Shortsighted (Myopia)Shop Nearsighted MasksIf things in the distance look blurry, like coral reefs, fish, or boats, you’re likely nearsighted. Our minus (-) prescription lenses bring far-away details into focus, so you can see the underwater world clearly while still keeping close-up vision sharp.
About 1 in 3 Americans are Nearsighted!
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Farsighted (Hyperopia / Presbyopia)Shop Farsighted MasksIf you see clearly far away but struggle to focus on things up close, like your gauges, camera, or the fish right in front of you, you’re likely farsighted.
Our plus (+) prescription lenses help bring everything into focus at once, making it easier to see clearly both near and far underwater.
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How Prescription Lenses Work UnderwaterShop All MasksWhether your lenses are plus or minus, they simply adjust how light enters your eyes so everything, from nearby coral to the open blue, looks crisp and clear.
Start seeing the reef and get your Prescription Snorkel/Dive Mask.
🌊 Save 10% on Your Entire Order | Use Code: OCEAN10 at Checkout 🌊
Use Our Exclusive Underwater Lens Calculator Tool
Underwater, light bends differently and can make your usual prescription feel too strong. We lower it slightly to prevent overmagnification. Step 1: Enter your prescription to find your recommended underwater lens strength
⭐ Trusted by 2,000+ divers worldwide | ✓ Free shipping on all orders $70+ | 🚀 Ships within 1-2 business days
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Vendor:Oceans Optics$70.00 USD
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Vendor:Oceans Optics$70.00 USD
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Vendor:Oceans Optics$85.00 USD
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Vendor:Oceans Optics
$94.00 USD$84.60 USDSALE -
Vendor:Oceans Optics
$94.00 USD$84.60 USDSALE -
Vendor:Oceans Optics$70.00 USD
more than JUST a guide
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Learn how to set up and use your snorkeling equipment like a pro.
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Learn about fascinating marine species and where to find them.
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Master the best techniques for keeping your mask clear from water and fog.
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Get tips on potential hazards and how to avoid them while enjoying your adventures.
Let customers speak for us
What customers think about the store
Store specializes in prescription dive/snorkel masks with custom lens options. Fast shipping, responsive customer service, and excellent quality-to-price ratio. Customers praise accurate prescriptions, comfortable fit, leak-proof designs, and helpful support. ...
AI-generated from customer reviews.
Frequently Asked Questions
Oceans Optics helps snorkelers and divers find prescription snorkel masks, prescription dive masks, and underwater vision gear designed for comfort, clarity, and confidence.
1. What does Oceans Optics sell?
Oceans Optics sells prescription snorkel masks, prescription dive masks, swim goggles, and ocean-ready accessories designed to make snorkeling, swimming, and scuba diving clearer, safer, and more enjoyable. Our focus is underwater vision, comfortable fit, and helping you choose the right gear before you get in the water.
2. Do you offer prescription snorkel and dive masks?
Yes. We offer prescription snorkel and dive masks for nearsighted and farsighted vision. Nearsighted lenses use negative SPH values, such as -2.50, while farsighted lenses use positive SPH values, such as +2.00. Each product page shows the lens strengths available for that specific mask.
3. Can I use your prescription masks for snorkeling and scuba diving?
Yes. Our prescription masks use HD tempered glass lenses and are suitable for snorkeling and scuba diving up to 100 ft (30 m). They are designed to help you see clearly underwater without needing to wear glasses or contact lenses in the water.
4. How do I choose the right lens strength?
Start with the SPH or Sphere value from your glasses prescription. Underwater, vision can feel slightly different because water adds natural magnification and mask lenses sit farther from your eyes than glasses. For many people, choosing around 0.50 diopters weaker, closer to zero, gives a more comfortable underwater view.
For the easiest recommendation, use our Underwater Lens Calculator It helps account for underwater refraction, available lens steps, and possible CYL/astigmatism values.
5. Can I get help choosing the right mask?
Yes. You can use our Face-Fit Auto Measure tool to help find a mask that better matches your face size and shape. If you are still unsure, contact us with your prescription, face measurements, or trip details, and we will help guide you toward the best option.
6. Do your masks work for nearsighted and farsighted prescriptions?
Yes. We offer options for both nearsighted and farsighted prescriptions. Nearsighted masks use minus lenses for distance vision, while farsighted masks use plus lenses to help with close-up and overall underwater clarity. Availability depends on the mask model, so check the product page for the exact lens range.
7. How long does delivery usually take?
Most orders arrive within 5 to 10 days, but we recommend allowing up to 14 days to be safe. You will receive tracking by email once your order ships. If you need your mask for a specific trip date, it is best to order as early as possible.
8. What makes Oceans Optics different?
Oceans Optics is not just about selling masks. We help people choose, understand, and use their underwater vision gear properly. Our Face-Fit Auto Measure tool helps with mask fit, our Underwater Lens Calculator helps with prescription choice, and our guides are designed to make snorkeling and diving feel less confusing and more exciting.
We are also building toward a wider ocean mission through reef restoration and artificial reef projects, so clearer underwater vision can become part of something bigger: helping more people enjoy, respect, and protect the ocean.