Why Dry Eye Symptoms Can Feel Worse in Colder Months

If your eyes tend to feel more irritated, watery or uncomfortable during the colder months, you are not alone. Seasonal changes can have a significant impact on the tear film and ocular surface, often making dry eye symptoms more noticeable throughout autumn and winter.

While many people associate dry eye with hot weather or excessive screen time, cooler temperatures and indoor heating can also contribute to worsening symptoms. For people who already experience mild irritation or dryness, seasonal changes can intensify discomfort and affect day-to-day activities such as reading, driving and prolonged screen use.

How Colder Weather Affects Your Eyes

Your eyes rely on a healthy and stable tear film to remain lubricated, comfortable and clear. The tear film is made up of three layers — oil, water and mucus — which work together to protect the surface of the eye and maintain visual quality.

During colder months, environmental conditions can disrupt this balance and increase tear evaporation. Cooler outdoor temperatures are often accompanied by stronger winds and lower humidity levels, both of which can dry out the ocular surface more quickly.

Common seasonal contributors include:

• Lower humidity levels
• Increased wind exposure
• Indoor heating and air conditioning
• More time spent indoors using screens

Even small changes in the environment can affect how stable your tears remain throughout the day.

Why Indoor Heating Can Make Dry Eye Worse

One of the biggest contributors to seasonal dry eye is indoor heating. Heaters significantly reduce moisture in enclosed environments, creating drier air that causes tears to evaporate more quickly. As a result, the eyes may struggle to maintain adequate lubrication, particularly for people who already have underlying dry eye disease or meibomian gland dysfunction.

This often leads to symptoms such as:

• Burning or stinging sensations
• Grittiness or irritation
• Fluctuating vision
• Redness
• Increased sensitivity to light
• Eye fatigue

Many people notice symptoms becoming worse at work or at home where heaters are running consistently throughout the day.

Increased Screen Time During Cooler Months

As temperatures drop, many people naturally spend more time indoors working, studying or relaxing on digital devices.

Extended screen use reduces blink rate, meaning the tear film is not spread evenly across the eye surface. Incomplete blinking can also prevent the oily layer of the tears from functioning properly, leading to faster evaporation and increased dryness.

When prolonged screen use is combined with heated indoor environments, dry eye symptoms can become significantly more noticeable.

People often report:

• Tired or heavy-feeling eyes
• Difficulty focusing
• Blurred vision that fluctuates throughout the day
• Increased discomfort in the evening

To read more about the relationship between digital screen use and dry eye disease, read the following resource: National Library of Medicine.

Why Watery Eyes Can Still Be a Sign of Dry Eye

Interestingly, watery eyes are still commonly associated with dry eye disease.

When the surface of the eye becomes irritated or excessively dry, the body may respond by producing reflex tears. However, these tears are often poor quality and lack the proper oil balance needed to maintain long-term lubrication.

This means eyes may water excessively while still feeling dry, irritated or uncomfortable.

Because symptoms can seem contradictory, many people do not realise dry eye may be the underlying cause.

Managing Dry Eye During Colder Months

There are several ways to help reduce dry eye symptoms during autumn and winter:

• Use preservative-free lubricating eye drops (Learn more about the type of drops to use here: American Academy of Opthalmology )
• Avoid direct airflow from heaters or fans
• Take regular breaks from screens
• Stay hydrated throughout the day
• Wear sunglasses outdoors to reduce wind exposure
• Consider using a humidifier indoors

For persistent symptoms, a professional assessment may be recommended to identify underlying causes such as meibomian gland dysfunction, inflammation or tear film instability.

When to Seek Professional Advice

Occasional dryness may be manageable at home, but persistent symptoms should not be ignored.

If you regularly experience irritation, fluctuating vision, watering or ongoing discomfort, a comprehensive eye assessment can help determine the cause and identify the most appropriate treatment options for your eyes. Early management can improve comfort, visual quality and long-term eye health.

Are you worried? Come in for a consultation and see how we can help you. Book now.