Dry Eye in Summer: Why It Can Get Worse and How to Protect Your Eyes

09 July 2026

Summer is often associated with vacations, outdoor activities, and spending more time in the sun. However, high temperatures, wind, constant air conditioning, and other changes in our routines can affect the ocular surface and cause dry eye symptoms to appear or worsen.

Dry eye occurs when the eyes do not produce enough tears or when the tears are not of sufficient quality to keep the ocular surface properly lubricated. It can also occur when tears evaporate too quickly. As a result, discomfort may develop, affecting visual comfort and, in some cases, the quality of vision.

Why Can Dry Eye Get Worse During the Summer?

During the warmer months, we are exposed to different factors that can disrupt the tear film and increase tear evaporation.

1. Frequent Use of Air Conditioning and Fans

During the summer, we tend to spend more time in air-conditioned spaces. Although air conditioning and fans help us cope with the heat, they can also reduce humidity levels and increase tear evaporation.

The problem may be worse when air blows directly onto the face, whether at the office, at home, or in the car.

2. Heat and Wind

High temperatures and exposure to wind can accelerate the evaporation of the tear film. For this reason, some people may notice increased burning, a gritty sensation, or irritation after spending several hours outdoors.

3. More Screen Time

During vacations or days off, we may also spend more time using smartphones, tablets, and other electronic devices. When focusing on a screen, we tend to blink less frequently, which can interfere with the proper distribution of tears across the surface of the eye.

4. Swimming Pools and Seawater

Chlorine in swimming pools can irritate the ocular surface, especially in people who already have sensitivity or dry eye symptoms. Salt water can also cause temporary burning or discomfort.

In addition, swimming while wearing contact lenses can increase the risk of eye complications and is therefore not recommended.

5. Changes in Routine

Travel, irregular sleep schedules, inadequate hydration, and changes in daily habits can also affect eye comfort during the summer.

What Are the Symptoms of Dry Eye?

Symptoms can vary from person to person, but the most common include:

• Burning or stinging.
• A gritty sensation or the feeling that something is in the eye.
• Redness.
• Itching or irritation.
• Sensitivity to light.
• Intermittent blurred vision.
• Eye fatigue.
• Discomfort when wearing contact lenses.
• Excessive tearing.

Although it may seem contradictory, dry eyes can also water excessively. This occurs because irritation of the ocular surface can trigger reflex tearing, but these tears do not always have the quality needed to keep the eyes properly lubricated.

How Can You Protect Your Eyes From Dry Eye During the Summer?

A few simple changes to your routine can help reduce discomfort:

• Avoid direct airflow toward your eyes.
• Wear sunglasses.
• Remember to blink when using screens.
• Stay well hydrated.
• Do not rub your eyes.
• Take precautions at pools and beaches.
• Use artificial tears only when they are appropriate for you.