2024-12-16
Contact Lenses for Swimming: Clear Vision in the Water Without Glasses
As an optometrist with years of experience, I get this question a lot. People want to enjoy swimming, watersports, or even just a dip in the pool without the frustration of blurry vision. The good news is, it's often entirely possible with contact lenses, but it's not quite as simple as just popping them in and jumping in! There are important considerations – not just about which lenses are suitable, but also about risks, care, and practicalities. This post will give you a thorough understanding of contact lenses and swimming, so you can make an informed decision.
Are All Contact Lenses Suitable for Swimming?
The short answer is no. Most contact lenses aren’t designed for swimming, and wearing the wrong type can lead to serious eye infections. Here’s why:
- Water Absorption: Many soft contact lenses (the most common type) are made of hydrogel materials that absorb water. This is great for comfort when you’re awake, but in a pool, lake, or ocean, that means the water – and anything in it – can also be absorbed into the lens.
- Microorganism Harbouring: Contact lenses, even clean ones, can become a breeding ground for microorganisms like Acanthamoeba, a potentially devastating eye infection. Water significantly increases this risk. This isn’t just chlorine pools; natural bodies of water contain far more organisms.
- Lens Displacement: The force of the water can dislodge lenses, especially if you’re diving or doing vigorous strokes. Losing a lens underwater is unpleasant, and trying to find it can be dangerous.
However, there are options. Here’s a breakdown:
- Daily Disposables: These are generally the safest option for swimming. Because you wear them for only one day and then discard them, you minimize the risk of microorganism build-up. Even with daily disposables, careful hygiene is crucial (more on that later).
- Silicone Hydrogel Lenses: These lenses allow more oxygen to reach the cornea than traditional hydrogel lenses, and some have better water resistance. While not ideal for frequent or prolonged swimming, they can be considered with careful monitoring and strict adherence to hygiene protocols.
- Specialty Swim Lenses: Some manufacturers specifically design lenses for swimming. These are typically rigid gas permeable (RGP) lenses, which don’t absorb water, and are fitted to stay securely in place. They are a great option for dedicated swimmers, but require a proper fitting and can take some getting used to.
What About Chlorine and Salt Water?
Chlorine and salt water aren’t the direct problem, it’s what they carry. Chlorine is used to kill bacteria, but it doesn’t eliminate everything. Saltwater contains natural bacteria, algae, and other irritants. Both can cause dryness and irritation, even with appropriate lenses.
Here’s a more detailed look:
- Chlorine: Prolonged exposure can dry out the lenses and your eyes. The pH of chlorinated water can also affect lens comfort.
- Saltwater: The high salt content can draw water out of the lenses (and your eyes), leading to discomfort.
Regardless of the water type, always rinse your eyes thoroughly with clean, fresh water after swimming to remove any residual irritants.
I Already Wear Contacts – Can I Just Wear Them While Swimming?
Potentially, but with significant caveats. If you wear extended-wear lenses, absolutely not. Those are specifically not designed for water exposure. If you wear daily disposables, and only swim occasionally, it’s lower risk, but still requires diligence.
Consider these points:
- Lens Material: As discussed, hydrogel lenses absorb water, increasing risk.
- Swimming Frequency: Occasional dips are less risky than regular training.
- Water Type: A clean, well-maintained pool is less risky than a lake or ocean.
- Your Immune System: If you’re prone to eye infections, swimming with contacts is generally not recommended.
A Real-Life Example: I had a patient, a triathlete in Okotoks, Alberta, who consistently swam with her monthly disposable lenses. Despite diligent cleaning, she developed a painful Acanthamoeba infection that took months to treat and almost resulted in permanent vision loss. She now exclusively uses daily disposables during swimming season and is incredibly strict about her lens care.
What’s the Proper Contact Lens Care When Swimming?
This is where many people fall short. Even with the right lenses, improper care can negate all the benefits.
- Remove, Rinse, and Disinfect: Immediately after swimming, remove your lenses. Even if they feel fine. Rinse them thoroughly with a multi-purpose solution designed for contact lenses (never tap water!). Then, disinfect them according to the manufacturer's instructions.
- Lens Case Hygiene: Your lens case is a potential source of contamination. Empty it, rinse it with solution, and air dry it after each use. Replace your lens case at least every three months.
- Handwashing: Wash your hands thoroughly with soap and water before handling your lenses, always.
- Avoid Swimming if Eyes are Irritated: If your eyes are red, irritated, or painful, do not swim with contacts. See an eye care professional.
- Consider Swim Goggles: Even with contacts, wearing tight-fitting swim goggles provides an extra layer of protection and reduces direct water exposure.
How Much Do Contacts for Swimming Cost?
Cost varies depending on the type of lens and how often you swim.
- Daily Disposables: A 30-day supply can range from $40 to $80, depending on the brand and where you purchase them. For occasional swimmers, this is a relatively affordable option.
- Silicone Hydrogel Lenses: A pair can cost $100-$250, and they may last several months with proper care. However, remember the increased risk when swimming.
- RGP Swim Lenses: The initial fitting and lenses can cost $300-$600. They will likely last a year or more, but require regular check-ups.
Don't forget to factor in the cost of lens solutions and a lens case.
What Most People Don't Realize…
…is the importance of a professional assessment. Just because you can see with your current lenses doesn’t mean they're safe for swimming. I strongly recommend a consultation with an optometrist to discuss your individual needs, swimming habits, and eye health. We can assess your risk factors, recommend the best lens type, and provide personalized care instructions. We can also rule out any underlying eye conditions that might make swimming with contacts unsafe.
The bottom line is this: enjoying clear vision while swimming is achievable with contact lenses, but it requires careful planning, the right lenses, and diligent hygiene. Don’t take chances with your eyesight.