Why SeaVision Bifocal Dive Mask Lenses Are Better Than Competitors
For more than three decades, SeaVision has been committed to one mission: bringing true optical-quality vision to the underwater world. Long before “prescription dive masks” became a buzzword in the industry, our team—born from a full-service optical lab—was already perfecting the science of prescription lenses for masks and goggles. Seeing clearly underwater isn’t a luxury; it’s essential. And at SeaVision, we’ve made it our specialty.Where It All Started: Optical Expertise First, Dive Gear Second
SeaVision didn’t begin as a dive gear company. We began as optical experts.
Because we started in the optical industry, we understand vision correction at its core: how lenses should be crafted, how prescriptions must align with the eyes, and how small details can dramatically affect what you see. When divers began asking for better underwater clarity, we saw a major problem—most “prescription dive inserts” on the market were not truly optical lenses. They were glued-in add-ons that didn’t match the precision or performance of real eyeglass lenses.
So we took what we knew best—optics—and pioneered a better way.
The Problem With Traditional Bifocal Dive Lenses
Many of our competitors create bifocal lenses by simply adding a large horizontal segment across the bottom portion of the mask. While this may sound like an easy solution, it introduces a series of problems:
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The bifocal sits too high, blocking part of your forward vision.
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The magnification spans too wide, creating distortion or blur when you’re not intentionally looking down.
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Your eyes must hunt to find the usable reading area, which makes quick glances at your dive computer frustrating or uncomfortable.
Underwater, clarity and quick perception are everything—you shouldn’t be fighting your lenses to see.
SeaVision’s Solution: Precision-Placed Round Bifocals
SeaVision bifocal lenses were engineered differently from day one.
Instead of wide, obstructive segments, we craft round bifocal lenses—just like high-quality eyeglass bifocals—and place them in the nasal corner of each lens. This placement is deliberate and optically strategic. It ensures that:
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The bifocal aligns naturally with your pupil path when you glance downward.

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You can clearly read your dive computer, gauges, or watch without moving your whole head.
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Your forward and peripheral vision remain completely open and distortion-free.
It’s simple: the bifocal is there when you need it… and out of the way when you don’t.
Custom Prescription Lenses — Not Glue-Ons
One of the biggest misconceptions in the dive industry is that prescription masks simply use bonded inserts. While this may be true for many competitors, it is absolutely not how SeaVision operates.
We do not glue or bond your prescription onto the existing glass.
Instead, we remove the original lenses and replace them entirely with your fully custom-made prescription optical lenses. This allows us to:
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Match your exact eyeglass prescription
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Control lens placement with precision
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Avoid bubbles, haze, or separation caused by glued pieces
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Deliver the same optical clarity you'd expect from your everyday eyewear
You’re not getting a modified mask—you’re getting a professionally crafted optical device built inside a dive mask.
Why Divers Trust SeaVision
Over the years, SeaVision lenses have helped thousands of divers regain confidence and clarity below the surface. Our legacy isn’t built on shortcuts—it’s built on technical expertise, premium materials, and a deep understanding of how vision works underwater.
Our bifocal lenses are clearer, more natural, and more comfortable because they’re made the way real lenses should be made: with true optical craftsmanship.

