Whether you're snorkeling a tropical reef or exploring deeper waters on scuba, your underwater experience depends on more than just your gear — it hinges on your ability to see clearly. For the 60%+ of the population with some form of vision correction (myopia or hyperopia), blurry underwater vision isn't just frustrating — it can be dangerous. And while many turn to contact lenses as a quick fix, that option brings its own serious risks.

In this article, Oceans Optics breaks down:

Why underwater vision is different from above water

What happens with uncorrected myopia or hyperopia in water

The risks of contact lenses underwater

The safest solution: prescription snorkel and dive masks

What Happens to Your Vision Underwater?

Water bends light differently than air, causing major blurring without an air gap. That’s why masks are essential — they restore an air interface. However, your usual prescription (for nearsightedness or farsightedness) still applies.

If you're myopic or hyperopic and not wearing correction, you’ll:

Struggle to read gauges, computers, and instructions

Misjudge depth and distance (a safety risk)

Experience eye strain, headaches, or fatigue from squinting

This isn’t just inconvenient — it’s a hazard. Divers Alert Network (DAN) emphasizes that clear vision is essential for safety.

Are Contact Lenses Safe for Snorkeling or Diving?

No. Most eye care experts, including the CDC and American Optometric Association, warn against wearing contact lenses underwater. Here's why:

Infection risk: Water can carry harmful microbes (e.g. Acanthamoeba) that stick to lenses and infect your eye

Corneal damage: Salt and chlorine can irritate or damage your cornea when absorbed into soft lenses

Lens loss or shifting: A mask flood or open eyes underwater can wash contacts away mid-dive

Gas buildup with RGP lenses: Hard lenses may trap nitrogen and cause blurred vision during ascent

If lenses must be worn, experts recommend daily disposables + a sealed mask, with lenses discarded immediately post-dive.

The Best Solution: Prescription Dive Masks

According to DAN, the American Academy of Ophthalmology, and World Underwater Federation:

"Prescription dive masks are the safest, clearest option for vision correction underwater."

Benefits:

Correct your vision accurately — like glasses

No infection or discomfort risks

Better visual awareness = better safety

Works for myopia, hyperopia

At Oceans Optics, we create high-quality prescription snorkel masks designed for adventure, clarity, and safety — engineered for people with glasses, contacts, or anyone who wants to see better below the surface.

Q: Can I wear contact lenses while snorkeling or diving?
A: No — it’s not recommended. Water exposure increases your risk of infection (e.g. Acanthamoeba), corneal damage, and lens loss. Most experts recommend switching to a prescription snorkel mask for safety and clarity.

Final Word

Don’t risk blurry dives or unsafe underwater adventures. Whether you're -3.00 or +2.50, prescription snorkel masks give you the freedom to explore with confidence — no squinting, no discomfort, no danger.

Shop Oceans Optics prescription dive masks — the clear choice for safe underwater vision.