How Hot Weather and Sun Exposure Impact Dry Eye

In Los Angeles, sunny days are part of our lifestyle. While the warm climate offers many perks, it can also pose challenges for your eye health. As temperatures climb and sunlight intensifies, many people notice their eyes feeling gritty, irritated, or uncomfortable. Understanding how hot weather and sun exposure impact dry eye can help you protect your vision and maintain comfort all year long.
 

How Hot Weather Affects Dry Eye

Hot weather increases the risk of tear evaporation, one of the leading contributors to dry eye symptoms. When the air is warm and dry, moisture on the surface of your eyes evaporates more quickly. Air conditioning, common in cars and buildings during the summer, can also worsen dryness by reducing indoor humidity. If you spend a lot of time outdoors, wind and dust can further irritate your eyes and strip away the natural tear film that keeps them comfortable.
 

The Role of Sun Exposure

Direct sun exposure doesn’t just affect your skin - it can also harm your eyes. Ultraviolet (UV) rays can cause inflammation on the eye’s surface, exacerbating dry eye symptoms. Squinting in bright sunlight may reduce your blink rate, which means your eyes aren’t getting the regular moisture distribution they need. Over time, cumulative sun exposure can even lead to more serious eye conditions, such as pinguecula or pterygium, both of which can worsen dryness and irritation.
 

What You Can Do to Protect Your Eyes

•         Wear Sunglasses: Choose sunglasses that block 100% of UVA and UVB rays and fit closely to your face. Wraparound styles offer extra protection against wind and dust, reducing evaporation and shielding your eyes from direct sunlight.

•         Stay Hydrated: Drinking enough water helps support healthy tear production. In hot weather, your body can dehydrate more quickly, so be sure to increase your fluid intake.

•         Use Artificial Tears: Lubricating eye drops can help supplement your natural tears and provide relief from dryness. Choose preservative-free drops if you use them frequently.

•         Use a Humidifier: If you’re spending time indoors with air conditioning, consider using a humidifier to add moisture to the air. This can help prevent your eyes from drying out.

•         Limit Outdoor Activities During Peak Sun Hours: Try to schedule outdoor activities in the early morning or late afternoon, when the sun is less intense.

•         Practice Good Eye Hygiene: Clean your eyelids and lashes regularly to remove debris and reduce the risk of irritation.

When to See Your Optometrist

While mild dry eye symptoms can often be managed at home, persistent or worsening discomfort deserves professional attention. If you experience ongoing dryness, redness, or irritation, it’s important to schedule an appointment with your optometrist. You should also seek professional care if over-the-counter treatments don’t provide relief, or if you notice changes in your vision, such as blurriness or increased light sensitivity.
 

Additionally, if your eyes become painful or you have a persistent sensation of something in your eye that doesn’t go away, it’s time to consult an eye care professional. Our optometrist can diagnose the underlying causes of your symptoms and recommend targeted treatments, such as prescription eye drops, punctal plugs, or in-office therapies designed to support tear film health.
 

Take the Next Step for Eye Comfort

Dry eye is a common problem, especially in hot, sunny climates like Los Angeles. By taking proactive steps, you can minimize discomfort and keep your eyes healthy throughout the summer. If your sympoms persist or worsen, don’t hesitate to reach out for professional care.
 

If you’re struggling with dry eye symptoms, schedule a consultation with Los Angeles Vision Center to find relief and protect your vision in every season. Visit our office in Los Angeles, California, or call (323) 934-2020 to book an appointment today.