Preventing Eye Infections from Pool and Beach Activities

Summer is a time for making memories at the swimming pool, on the lake, or along the coast. While a refreshing dip can be a pleasure, the water you’re jumping into may not always be as pure as it looks. It can harbor microscopic threats that may lead to painful and potentially serious eye infections.

Here’s what you need to know to keep your eyes safe while having water-related fun.

How Water Activities Can Harm Your Eyes

Swimming pools and natural water bodies contain bacteria, viruses, and irritants that can harm your eyes. The risk doesn’t just come from dirty water. Even clean, well-maintained pools contain chemicals like chlorine that can disrupt your eye’s protective tear film. 

Here are some of the most common culprits:

• Bacterial Infections: Pseudomonas aeruginosa is a type of bacteria often found in poorly maintained pools and hot tubs. It can lead to keratitis, a painful infection of the cornea.
• Viral Infections: Viruses, such as those that cause conjunctivitis (pink eye), can spread in shared pool water, especially in crowded public facilities.
• Acanthamoeba: A microscopic organism found in fresh water and soil, Acanthamoeba can lead to serious corneal infections, especially in contact lens wearers.
• Irritants: Chlorine, while effective at killing germs, can also irritate the eyes by altering the natural tear layer that keeps them moist and protected.

Common Eye Conditions from Water Activities

Exposure to these environments can lead to a range of eye problems, from mild irritation to vision-threatening infections. Understanding these conditions is the first step toward effective prevention.

Swimmer’s Eye

Swimmer's eye is characterized by redness, a gritty sensation, stinging, and sometimes temporary blurred vision. This condition is a form of chemical conjunctivitis, an inflammation of the clear tissue (conjunctiva) that covers the white part of the eye and lines the inside of the eyelids. This is typically a reaction to the chloramines in pool water, which disrupt the protective tear film that keeps our eyes moist and healthy. When this tear film is washed away or compromised, the eyes become vulnerable to irritation from chemicals and pathogens.

Infectious Conjunctivitis (Pink Eye)

Beyond chemical irritation, pools and natural waters can harbor the bacteria and viruses that cause infectious conjunctivitis or pink eye. Pathogens like Streptococcus and Pseudomonas can thrive in inadequately chlorinated water. If contaminated water comes into contact with your eyes, these microbes can lead to an infection characterized by significant redness, a watery or thick discharge, and itching. This condition is highly contagious and can easily spread through shared towels or contaminated hands.

Acanthamoeba Keratitis

This waterborne eye infection is caused by Acanthamoeba. Acanthamoeba is a naturally occurring amoeba found in virtually all soil and water, including tap water, lakes, oceans, and swimming pools. While it rarely causes problems under normal circumstances, it can cause severe and excruciating pain when it enters the eye, particularly one with a small corneal abrasion. 

Symptoms of Acanthamoeba keratitis include severe eye pain, intense light sensitivity, the sensation of something being in the eye, and a progressive blurring of vision. This condition can be incredibly difficult to treat and can lead to permanent vision loss or the need for a corneal transplant.

Signs of Trouble After Swimming

It’s normal for your eyes to feel a little tired or dry after a long day at the beach or pool. But if you notice these symptoms, you may be dealing with more than just mild irritation:

• Redness that doesn’t fade
• Pain or a gritty sensation
• Sensitivity to light
• Blurry or reduced vision
• Discharge from one or both eyes

If any of these symptoms last more than a day or worsen quickly, it’s best to consult an eye care professional.

Tips to Protect Your Eyes

The vast majority of these eye problems are preventable by adopting a few simple, proactive habits. Here are some tips to significantly reduce your risk and ensure that your time in the water remains safe and enjoyable.

Wear Well-Fitted Swim Goggles

One of the simplest and most effective ways to protect your eyes while swimming is to wear high-quality swim goggles. Goggles create a seal that keeps out water, minimizing direct exposure to irritants, bacteria, and microbes. Goggles are especially important for those who wear contact lenses. Contacts can trap microorganisms against the surface of the eye, increasing the risk of infection.

When choosing goggles, look for a snug but comfortable fit, anti-fog lenses, and UV protection.

Remove Contact Lenses Before Swimming

Contacts are porous, meaning they can absorb water along with any microbes swimming in it. This increases the risk of developing serious infections like Acanthamoeba keratitis. If you must wear vision correction while swimming, consider prescription swim goggles. 

Shower Before and After Swimming

Rinsing off before getting in the pool isn’t just polite but also helps reduce the contaminants introduced into the water. Showering after your swim, especially your face and eyes, can wash away lingering chlorine, bacteria, and debris that could cause problems later.

Avoid Rubbing Your Eyes

It’s tempting to rub your eyes if they feel itchy or irritated, but doing so can push bacteria deeper into your eye and worsen any inflammation. If your eyes are uncomfortable, rinse them with clean water or saline solution instead. Over-the-counter lubricating eye drops can also help soothe mild irritation.

Avoid Swimming in Dirty or Cloudy Water

Not all water is created equal. If the pool water looks cloudy, has a strong odor, or hasn’t been maintained recently, it may contain harmful bacteria or viruses. The same goes for natural bodies of water after heavy rainfall, which can carry runoff and waste into lakes and oceans.

Take Extra Care at the Beach

Beach activities come with their own set of challenges. Sand, saltwater, and wind can all irritate the eyes or introduce foreign material. If you’re spending time on the shore, wear wraparound sunglasses to shield your eyes from both UV rays and blowing sand. Should sand or saltwater get in your eyes, rinse thoroughly with fresh water as soon as possible.

Monitor Children Closely

Kids are often more vulnerable to eye infections simply because they tend to rub their eyes more, share towels, or swim with their eyes open underwater. Make sure children have well-fitted swim goggles, avoid sharing goggles or towels, and understand basic hygiene like rinsing off after swimming and not rubbing their eyes with dirty hands.

The Role of Regular Eye Exams

Whether you swim every weekend or just take the occasional beach trip, routine eye exams can catch issues early and ensure that your eyes are healthy and resilient. These exams allow your eye doctor to assess any recurring irritation or signs of infection and to guide you on preventive care based on your lifestyle.

At Eyecare Associates of Texas, P.A., our commitment to your vision extends beyond the clinic. With decades of experience in preventive and surgical eye care, we’re here to help you protect your eyes. Visit us or call us at (972) 637-1300 today for comprehensive guidance, personalized recommendations, or to schedule an appointment!