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Overhead view swimmer in pink cap performs powerful butterfly stroke, his back muscles rippling with each stroke in clear blue pool.

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Chlorine is a common chemical used to keep swimming pools clean and safe by killing bacteria and other harmful microorganisms. While it’s essential for pool hygiene, chlorine can have unintended effects on your eyes. At Family Eye Care, we’re committed to helping you understand how to protect your vision. Here’s what you need to know about chlorine and its impact on eye health.

Why Chlorine Is Used in Pools

Chlorine is a powerful disinfectant that prevents the growth of algae, bacteria, and other pathogens in swimming pools. It helps maintain water clarity and safety, protecting swimmers from infections. However, when chlorine interacts with sweat, urine, and other organic matter in the water, it forms compounds called chloramines, which can irritate the eyes and skin.

How Chlorine Affects Your Eyes

When you swim in a chlorinated pool, your eyes may come into contact with chlorine and chloramines. Here’s how they can affect your vision and eye health:

  • Irritation and Redness: Chlorine and chloramines strip away the tear film—a thin layer of moisture that protects your eyes. This can lead to redness, burning, and a gritty or stinging sensation.
  • Dryness: Prolonged exposure to chlorine can dry out your eyes, causing discomfort and increasing the risk of irritation or infection.
  • Allergic Reactions: Some people are sensitive to chlorine or chloramines, which can trigger allergic conjunctivitis, leading to itchy, watery, and swollen eyes.
  • Corneal Damage: In rare cases, excessive exposure to high levels of chlorine—especially in poorly maintained pools—can cause temporary damage to the cornea (the clear surface of the eye), resulting in blurred vision or sensitivity to light.
  • Increased Risk of Infection: While chlorine kills many bacteria, it’s not foolproof. If pool water is improperly balanced, pathogens like those causing pink eye (conjunctivitis) or other infections may survive and affect your eyes.

Symptoms to Watch For

After swimming, you might experience:

  • Red, irritated eyes
  • Burning or stinging sensation
  • Itchy or watery eyes
  • Blurred vision
  • Sensitivity to light

If symptoms persist for more than a day or become severe, consult an eye care specialist at Family Eye Care to rule out infection or other complications.

Tips to Protect Your Eyes

You can still enjoy swimming while keeping your eyes safe. Follow these tips:

  • Wear Swim Goggles: Goggles create a protective barrier, preventing chlorine and chloramines from reaching your eyes.
  • Rinse After Swimming: Rinse your eyes with clean, fresh water or artificial tears immediately after leaving the pool to remove chlorine residue and restore moisture.
  • Avoid Rubbing Your Eyes: Rubbing can worsen irritation and introduce bacteria, increasing the risk of infection.
  • Use Lubricating Eye Drops: Artificial tears can help relieve dryness and flush out irritants. Consult your eye doctor for recommendations.
  • Check Pool Maintenance: Ensure the pool you swim in is properly maintained with balanced chlorine and pH levels to minimize irritation.
  • Take Breaks: Limit prolonged exposure to chlorinated water to reduce the risk of irritation or damage.

Chlorine is vital for keeping pools safe, but it can irritate and dry out your eyes if you’re not careful. Mild irritation from chlorine typically resolves on its own with rinsing and rest. However, persistent redness, pain, vision changes, or discharge could be signs of an infection, chemical conjunctivitis, or another issue requiring treatment.

If you have concerns about chlorine exposure or any eye-related issues, schedule an appointment or give us a call.