As temperatures rise and swim season is in full swing, many families head to pools, lakes, and beaches to cool off. While swimming is a great way to stay active and enjoy the outdoors, it can also pose risks to your eye health — especially if you’re not taking the right precautions.
Whether you wear contact lenses, struggle with eye irritation after swimming, or have children splashing around all summer long, it’s important to understand how water exposure affects the eyes and how to prevent irritation or infection.
Chlorine and Eye Irritation: What’s Really Happening?
Chlorine is used in pools to kill harmful bacteria — but it’s not so gentle on your eyes. Prolonged exposure to chlorine can strip away the tear film that protects your cornea, leading to:
- Redness and irritation
- Dry, gritty sensation
- Watery eyes
- Blurry vision
Some people may also develop chemical conjunctivitis, a mild inflammation caused by pool chemicals. And remember: chlorine doesn’t kill everything instantly — it may neutralize some bacteria, but other pathogens can linger.
The Risks of Swimming with Contact Lenses
Wearing contact lenses while swimming might seem convenient, but it significantly increases your risk for serious eye infections.
Most concerning dangers include:
Bacterial Keratitis
This is an infection of the cornea caused by bacteria that can be found in any type of water (including pools, lakes, hot tubs, and even tap water). It can cause pain, redness, light sensitivity, and blurred vision — and can lead to permanent vision damage if not treated promptly.
Acanthamoeba Keratitis
This rare but sight-threatening infection is caused by a microscopic organism found in water and soil. Contact lenses act like a sponge, trapping Acanthamoeba between the lens and the eye, allowing it to infect the cornea.
Bottom line:
Never swim in contacts, even in chlorinated pools. If you must, wear daily disposable lenses with watertight swim goggles, and discard them immediately after.
When Should You Use Swim Goggles?
Swim goggles are one of the simplest and most effective tools for protecting your eyes during water activities.
Benefits of swim goggles:
- Prevent chlorine and irritants from coming into contact with your eyes
- Protect from bacteria and parasites in natural bodies of water
- Improve underwater vision for kids and adults alike
- Allow contact lens wearers to swim more safely (with dailies and removal afterward)
Tip:
Choose UV-blocking, leak-proof goggles for outdoor swimming to add protection from the sun’s harmful rays as well.
Tips for Treating Red or Irritated Eyes After Swimming
Even with precautions, it’s not uncommon to experience mild irritation after swimming. Here’s what you can do at home:
- Rinse your eyes with sterile saline or artificial tears (avoid tap water)
- Apply a cold compress to reduce redness or swelling
- Avoid rubbing your eyes, which can worsen irritation
- Switch to glasses for a day or two if you wear contacts
Symptoms should resolve within a few hours. But if you experience pain, light sensitivity, discharge, or blurred vision, it may indicate an infection.
When to See an Eye Doctor
Schedule an eye exam if you notice any of the following after swimming:
- Persistent eye redness or irritation lasting more than 24 hours
- Pain or light sensitivity
- Blurred vision or decreased visual clarity
- A feeling of something stuck in your eye
- Mucus-like discharge
An ophthalmologist can diagnose conditions like chemical conjunctivitis, corneal abrasions, or early signs of keratitis, and recommend treatment to prevent complications.
Safe Swimming Starts with Smart Eye Care
Summer is meant for fun — and keeping your eyes protected means you can enjoy every moment with clarity and comfort. At North Fulton Eye Center, we’re here to help you and your family stay safe, protected, and vision-ready all season long.
Book an eye exam today if you’ve experienced eye issues after swimming, or if you’re a contact lens wearer heading into swim season.