Prescription nearsighted mask makes for better adventures

Title: The Mystery of the Deep: Why I’ll Never Dive Without a Prescription Mask Again

Diving’s always full of surprises, especially when you decide to escape the usual spots and explore the unknown. That’s exactly what my buddy Sam and I did one clear, calm day—we decided to venture off the dive site into uncharted waters, taking a path that maybe no one has ever walked.

As we ventured further from the usual dive trails, I noticed a large, obscure shape in the distance. It was too murky to make out what it was, and my curiosity piqued. “Man, I wish I could see that,” I muttered into my regulator. I want to know what it is. We both glanced at eachother, sam stuck his arm out pointing towards the myseteriuos creature. We confirmed limits; Everythings all good, so we signalled and decided to investigate.

The closer we got, the more I realized just how big this thing was, It hovered there, ominously still, then suddenly turned and made sharpflick around and faced right towards us. Must of been 6 feet and chunky.

It started making its way towards us and then suddenly took a 90 degrees turn. Its started circling us, slowly at first, but then itis sopeed kept rising. 

It was that moment we raelised we had fucked up.

We were out in the deep, staring down something huge and alive. I flashed Sam the signal, and we agreed it was time to make a dash for it, fast. We couldn’t ascend quickly due to decompression risks, so we stayed low & powered back to the reef, were gling through the water slmost flying over the sand and manouvering around boulderas and coral, heart rate elevating, breathing is geting heavy so I glance back nervously to check, the creature was gone, or so I thought. Just as we started to relax, it zoomed towards us like a torpedo. It shot right over our heads and in that flash, we saw it clearly—a gigantic barracuda! It darted off after a squid that was using us as shelter. Then suddenly a big cloud of ink shot out from the squid, the barracuda confused and struggling to see anything starts swimming of with dissapointment.

The adrenaline was real. Sam and I looked at each other, our eyes wide with shock and a hint of awe. It was a reminder of the raw, wild parts of nature you can only experience firsthand.

That dive taught me one crucial lesson: Dont overestimate your vision. Underwater we need to see clearly. Rx Prescription masks should be everywhere.

Seeing clearly underwater isn’t just about the view—it’s about safety, knowing your surroundings, and being prepared for anything. And from that very day i've always worn RX.

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Mask sizing: Mask Size Guide Helper

How to Measure Your Face for a Prescription Snorkel & Scuba Mask

Buying a mask online can be tricky — so we built multiple ways to check fit and feel confident the seal will be just perfect.

1

Measure Width

Outer eye corner to outer eye corner in a straight line (don’t wrap).

2

Measure Height

From just under your nose to just above your eyebrow line.

3

Optional: Head Size

Wrap a string around your hat line, mark, then measure. Use the table as a guide.

4

Enter Your Sizes

Use our slider tool to enter your measurements & find your perfect fit.

How to measure your face for a prescription mask

Quick Face-Size Checker

Tips: use a straight ruler (don’t bend it), check in a mirror, or ask a friend to help.

3 Head-Size Checker (Optional)

Measure around the hat line (above ears/brows)

Head-Size to Mask-Size

Measure your head the same way you’d measure for a hat. Use a soft tailor’s tape (or wrap a piece of string/cord), around your head above the ears and just above the eyebrows, then read the length (or measure the string). Keep it level all the way around.

4 Enter Your Sizes
Use the slider to find your perfect fit!
Underwater Lens Calculator

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. Step 1: Enter your prescription to determine your recommended underwater vision

Choose the sign first:
Use − for myopia, + for hyperopia.
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Suggested Lens Strength:

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Let customers speak for us

from 883 reviews
I can't believe these weren't expensive

I can't believe I let some years go by thinking that prescription masks must be super expensive. These aren't. I haven't used them yet, but just wearing them in the house and looking at objects that I know would be a little fuzzy at a distance, were incredibly sharp. Mask made of silicon is a plus.

ROBERT L.
Rx Obsidian Nearsighted Prescription Snorkel & Scuba Dive Mask
This worked beautifully

This was my first time snorkeling. I never went before because I can't see well without my glasses. Honestly, I was nervous about it. But, I didn't need to be. Everything worked really well. I could see. I could breathe. In the end, I had a blast.
Even the boat captain commented that it was a really nice set.

Denise B.
Rx Obsidian Nearsighted Prescription Snorkel & Scuba Dive Mask

Worked great!

Kathy T.
Rx Obsidian Nearsighted Prescription Snorkel & Scuba Dive Mask
Allowed my daughter to snorkel and see everything!

My daughter has bad eyesight, -7.5 prescription. She doesnt do well with contacts so wears glasses all the time. Without them she cannot see 3 feet in front of herself. These were so easy to order, arrived quickly and allowed her to really enjoy our snorkel trip to St. Croix. They worked great, no issues with using them. Thank you so much for this!!

Brenda
Rx Obsidian Nearsighted Prescription Snorkel & Scuba Dive Mask
Prescription goggles

We ordered a pair of prescription goggles for our trip to Hawaii and couldn’t be more pleased with our purchase. Shipping was quick and they worked great!

Audrey M.
Rx Obsidian Nearsighted Prescription Snorkel & Scuba Dive Mask
Comfy

I enjoy these and I can see with the Rx! The none water filling snorkel is great too!

Jana B.
Rx Obsidian Nearsighted Prescription Snorkel & Scuba Dive Mask
Tough prescription and they nailed it!

Super excited to be able to see fish in Hawaii! I tried it out in my pool and it works great. Higly recommend!

Jen M.
Rx Action Farsighted Prescription Dive Mask w/Cam Mount
Nice to see

Awesome mask and vision. Thanks

Gregory S.
Rx Action Nearsighted Prescription Dive Mask w/GoPro Mount - Black

I ordered this mask for my trip to Thailand, and it came I pretty fast! I ordered the white mask/fin/snorkle set and backpack to carry it all in, I felt so cute and everything worked so much better than the gear I would rent in the past. Thanks Ocean Optics! I love you guys and your mission.

Sage H.
Rx Lumix Prescription Snorkel/Dive Mask - Aluminum - White
Wonderful purchase

The goggles were a perfect fit and did not leak or fog as much after I took the steps they suggested to defog , my entire purchase was amazing from beginning to end. Highly recommend !

Allison G.
Rx Obsidian Nearsighted Prescription Snorkel & Scuba Dive Mask
Perfect

The mask is perfect, fits well and works great!

Robin B.
Rx Obsidian Nearsighted Prescription Snorkel & Scuba Dive Mask
I’ll finally be able to see!

We ordered three and we all can see great. Good quality. Only complaint one was supposed to have GoPro attachment and didn’t but did not have time to return before our trip. Other wise very happy.

Joanne V.
Rx Obsidian Nearsighted Prescription Snorkel & Scuba Dive Mask
Great!

They work great!

Brittany J.
Rx Obsidian Nearsighted Prescription Snorkel & Scuba Dive Mask
Fantastic!

The last time I went snorkeling (more than 10 years ago) I wore contacts. At age 65, glasses only. I thought I was done snorkeling, until I found these! They worked perfectly! I could see the fish. And at around 80 bucks for the mask and a breather tube, it's a bargain. They charge like $25 to rent them at the beaches when you go on a cruise (and it is gross using something that was in someone else's mouth!) I highly recommend these if you are near-sighted and want to snorkel.

GoBucksJoe
Rx Obsidian Nearsighted Prescription Snorkel & Scuba Dive Mask

Ecellent mask, i can finally see! Wow, im so happy i found this site!

Jewell S.
Rx Action Nearsighted Prescription Dive Mask w/GoPro Mount - Black

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