Swimming and Eye Safety: Protecting Your Vision in the Water

Pools use chlorine and other chemicals to kill germs, but these same chemicals can strip away your natural tear film, making your eyes feel dry and burned. The stinging feeling you get when opening your eyes underwater often comes from a combination of chlorine and nitrogen compounds from sweat, urine, and personal care products mixing with pool water. The irritation is actually worse when the pool water is not balanced properly. Well-maintained pools with proper pH levels between 7.2 and 7.8 cause less irritation.

Ocean water contains salt that can pull moisture out of your eyes through a process called osmosis, making them feel dry and gritty. Ocean water has about three times more salt than your natural tears, which creates an imbalance. Combined with sun, wind, and sand, beach swimming can really dry out your eyes. The salt can also make small scratches on your eye's surface feel worse and slow down healing.

Lakes, rivers, and poorly maintained pools can contain bacteria, viruses, and tiny organisms like parasites that cause eye infections. These germs can stick to your eyes and cause redness, swelling, yellow or green discharge, and pain. Some infections are mild and clear up on their own, while others need prescription medicine from a doctor. Common waterborne bacteria include Pseudomonas, which can cause serious corneal infections if not treated promptly.

Wearing contact lenses while swimming is risky because water can get trapped under the lens along with germs or chemicals. This creates a perfect environment for infections to grow and can lead to serious problems, like a painful infection called Acanthamoeba keratitis, which may damage your vision permanently. Acanthamoeba is a microscopic organism found in tap water, lakes, and pools that can attach to contact lenses and cause severe corneal damage. Our ophthalmologists strongly advise against swimming with any type of contact lenses.

Bright sunlight reflecting off water can strain your eyes and cause headaches. This glare makes you squint, which can lead to tired, sore eyes. The water surface acts like a mirror, bouncing ultraviolet rays directly into your eyes. Over time, too much sun exposure without protection may increase your risk of developing cataracts, macular degeneration, or growths on the eye called pterygium later in life.

Wash your face and the area around your eyes with mild soap and clean water to remove any chemicals, salt, or bacteria. Use a soft washcloth and avoid getting soap directly in your eyes. Pat the area around your eyes dry with a clean towel rather than rubbing. This helps remove any residue that could continue irritating your eyes.

After swimming, rest your eyes by keeping them closed for 5 to 10 minutes or avoiding bright lights and screens. This gives your natural tears time to rebuild and helps reduce any irritation. If you are outdoors, move to a shaded area to let your eyes relax and recover from sun exposure and glare.

Pay attention to how your eyes feel after swimming. Watch for signs like persistent redness lasting more than a few hours, increased tearing, sensitivity to light, blurred vision, discharge, or pain. Keep track of these symptoms, including when they started and how severe they are, so you can tell a doctor if needed. Early detection of problems leads to better outcomes.

If your eyes feel irritated after swimming, apply a clean, cool, damp cloth over closed eyes for 5 to 10 minutes. This can help reduce swelling, soothe irritation, and provide comfort. Never use ice directly on your eyes, and make sure the cloth is clean to avoid introducing new bacteria. You can repeat this several times if needed.

Use preservative-free artificial tears after swimming to help restore your natural tear film. Apply drops as often as every hour if your eyes feel dry or scratchy. This helps speed up recovery and prevents the dry, uncomfortable feeling that can last for hours after swimming.

Swimming with contact lenses is not recommended because it greatly increases your risk of serious eye infections. If you absolutely must swim with contacts for competitive reasons, use daily disposable lenses with tight-fitting goggles, and throw the lenses away immediately after swimming. Never rinse lenses with water or store them after swimming. Never swim in lakes, rivers, or hot tubs while wearing any type of contact lenses, as these carry the highest infection risk.

Replace swim goggles every 6 to 12 months or when they start leaking, fogging up badly, or the straps become loose and stretched out. Check them before each swim for cracks in the lenses or frame that could let water seep in. Well-maintained goggles last longer, so rinse them with fresh water after each use and store them in a protective case away from direct sunlight, which can break down the materials.

Rinse your eyes immediately with clean, fresh water or sterile saline solution and apply preservative-free artificial tears. Rest your eyes by avoiding bright lights and screens. Apply a cool compress for comfort. If pain is severe, continues for more than a few hours, or you develop vision changes, discharge, or extreme light sensitivity, see an eye doctor or visit urgent care. Severe pain is never normal and requires prompt evaluation.

Both have risks and benefits. Ocean water does not have harsh chemicals like chlorine but has salt that can dry your eyes and may contain more bacteria, viruses, and parasites. Well-maintained pools are generally cleaner but use chemicals that can irritate eyes and strip away your natural tears. Regardless of where you swim, always wear goggles and rinse your eyes thoroughly with fresh water afterward.

Yes, outdoor swimming can worsen allergies because pollen and other allergens can float on the water surface and stick to your wet face and eyelids. Swimming indoors during high pollen seasons or using antihistamine eye drops as directed by your doctor can help. Always wear goggles and rinse your eyes and face after swimming to remove allergens. Showering after outdoor swimming also helps remove pollen from your hair and skin.

Make goggle-wearing fun by letting your child pick out colorful goggles or ones with their favorite characters. Start by having them practice wearing goggles on dry land or during bath time to get comfortable with the feeling. Explain in simple terms that goggles are like superhero gear that protects their eyes. Be patient and consistent, as it may take time for them to get used to the feeling. Never allow swimming without goggles once this rule is established.

Yes, if you need vision correction and do not want to risk swimming with contact lenses, prescription goggles are an excellent investment. They provide clear vision underwater while protecting your eyes from water and chemicals. Many optical shops, including those specializing in eye care like ours at ReFocus Eye Health Bloomfield (NW), can help you find prescription goggles that match your regular glasses prescription. They are especially valuable for competitive swimmers and people who swim frequently.

Yes, tinted goggles reduce glare from bright sunlight reflecting off the water, which can help prevent eye strain, squinting, and headaches. This is especially helpful for outdoor swimming and can improve both comfort and performance. Amber or brown tints work well in variable light, while darker tints are better for very bright conditions. However, avoid very dark tints for indoor swimming as they can make it hard to see. Mirrored coatings add an extra layer of glare reduction.

Occasional exposure to properly balanced pool chlorine rarely causes permanent damage. However, repeated exposure without protection can worsen dry eye conditions, cause chronic irritation, and potentially increase infection risk over time. Very high chlorine levels or chemical imbalances can cause chemical burns to the cornea and conjunctiva, which may lead to scarring if severe and untreated. This is why wearing goggles consistently is so important for regular swimmers.

Rinse goggles with fresh water after each use and let them air dry completely before storing. Avoid wiping the inside of the lenses, as this can damage anti-fog coatings that help you see clearly underwater. For deeper cleaning, use a small amount of baby shampoo on the outside only, then rinse thoroughly. Never use harsh chemicals, alcohol, or abrasive materials. Store goggles in a protective case to prevent scratches.

Swimming is usually not allowed for several weeks to months after most eye surgeries, including LASIK, cataract surgery, or procedures for glaucoma or retinal conditions. The healing eye is more vulnerable to infection from water exposure, and water pressure can affect healing tissues. Swimming too soon can lead to serious complications. Always follow your surgeon's specific instructions about when it is safe to return to swimming, and wear protective goggles when you do resume.

Yes, sunscreen can wash into your eyes while swimming and cause significant stinging and irritation. Use water-resistant sunscreen specifically designed for the face and apply it carefully, avoiding the eyelids and area very close to your eyes. Some sunscreens are formulated to be less irritating to eyes. Wearing a hat or visor along with sunglasses before swimming can also help keep sunscreen out of your eyes while still protecting the delicate skin around them.

See an eye doctor if you experience severe pain, significant vision changes or loss, thick yellow or green discharge, extreme light sensitivity, symptoms that do not improve within 24 to 48 hours, or a feeling like something is stuck in your eye that does not go away. Also seek care if you develop symptoms after swimming in lakes, rivers, or poorly maintained pools, as these carry higher infection risks. Early medical attention is crucial for serious issues and can prevent complications and permanent vision loss.

Saltwater pools often have lower chlorine levels because they generate chlorine gradually from salt, which may be less irritating for some people. However, the salt itself can still cause dryness and the pools still contain chlorine, just at different levels. Some people find saltwater pools more comfortable, while others notice little difference. Eye protection like goggles is still important in saltwater pools to prevent both chemical and salt irritation.

Prolonged UV exposure from sunlight reflecting off water can cause photokeratitis, a painful, temporary condition similar to a sunburn on the cornea. Symptoms include pain, redness, tearing, and light sensitivity that typically develop several hours after exposure. Over time, cumulative UV exposure can contribute to long-term issues like cataracts, macular degeneration, and growths on the eye surface. Wear UV-protective goggles or sunglasses for outdoor swimming, and take breaks in the shade.

Hot tubs pose a higher risk because the warm water temperature creates an ideal environment for bacteria and other organisms to grow rapidly, even with proper chemical treatment. This significantly increases the chance of serious eye infections. It is best to avoid submerging your head, keep your eyes closed, or wear tight-fitting goggles. Never open your eyes underwater in a hot tub. Children should be especially careful as they are more prone to infections.