Dry eye syndrome affects millions of people, but what many don’t realise is that certain everyday habits may unknowingly be making symptoms worse. While environmental factors and medical conditions contribute to dry eyes, simple lifestyle choices often play a surprisingly large role in symptom severity. Understanding and adjusting these habits can bring meaningful relief and protect your long-term eye health.
Screen Time and Reduced Blinking
Extended use of digital devices represents one of the most significant contributors to worsening dry eye symptoms. When you focus on computers, smartphones, or tablets, your natural blink rate drops dramatically, often by more than 50 percent compared to normal activities.
Blinking is essential for redistributing tears across the eye’s surface and maintaining moisture. When you blink less frequently, tears evaporate more quickly, leaving your eyes feeling dry, gritty, and uncomfortable. The concentrated focus required for screen work also disrupts the tear film’s stability, potentially worsening existing dry eye conditions.
To reduce digital eye strain, follow the 20-20-20 rule: every 20 minutes, take a 20-second break to look at something 20 feet away. Position your screen slightly below eye level to reduce the width of eye opening, which helps slow tear evaporation. Consider using artificial tears before extended screen sessions to maintain adequate moisture.
Contact Lens Overuse and Poor Hygiene
Wearing contact lenses for extended periods can significantly worsen dry eye symptoms. Contact lenses absorb moisture from your eyes to stay soft and comfortable, which can leave your natural tear film depleted. Sleeping in lenses that aren’t designed for overnight wear restricts oxygen flow to the cornea and increases infection risk.
Poor contact lens hygiene compounds these problems. Using expired solutions, failing to replace lenses on schedule, or touching lenses with unwashed hands introduces bacteria and irritants that can inflame the eye surface.
Always follow your optometrist’s recommended wearing schedule and replacement timeline. Remove lenses before sleeping unless specifically prescribed for extended wear. Use fresh contact lens solution every time you store your lenses, and replace your lens case every three months.
Environmental Factors
Indoor climate control systems can dramatically worsen dry eye symptoms without you realising it. Air conditioning and heating systems reduce humidity levels, creating environments where tears evaporate more rapidly. Direct airflow from fans, air vents, or car heating systems compounds this problem by increasing air movement across the eye surface.
Even brief exposure to moving air can cause significant moisture loss, particularly for those already experiencing dry eye symptoms. If you work in air-conditioned offices or sleep under ceiling fans, these environments may be quietly aggravating your condition throughout the day and night.
To minimise environmental impact, use a humidifier to restore moisture to indoor air. Redirect fans and air vents away from your face, and avoid positioning yourself directly beneath air conditioning units. When driving, direct car vents toward your feet rather than your face.
Lifestyle Choices Affecting Eye Moisture
Several daily lifestyle choices can directly impact your eye’s ability to produce and maintain healthy tears. Dehydration significantly affects tear production, as your body prioritises water for vital organs over tear glands when fluid levels are low. Since tears are primarily water-based, insufficient hydration reduces both tear quantity and quality.
Poor sleep habits also disrupt the body’s natural tear production cycle. Sleep deprivation increases stress hormones that interfere with normal tear function and can alter the structure of cells that help maintain the tear film.
Your diet plays a crucial role as well. Diets lacking omega-3 fatty acids can worsen dry eye symptoms, as these essential fats support tear quality and help reduce inflammation. Foods rich in omega-3s include fatty fish, walnuts, and flaxseeds.
Aim to drink eight to ten glasses of water daily, prioritise seven to eight hours of quality sleep, and incorporate omega-3-rich foods into your diet. Consider omega-3 supplements after consulting with your healthcare provider.
Habits That Directly Irritate the Eyes
Certain direct actions can significantly worsen dry eye symptoms. Rubbing your eyes, while temporarily satisfying, mechanically disrupts the tear film and can cause inflammation of the eyelids and surrounding tissue. Frequent eye rubbing also increases the risk of corneal damage and can spread bacteria from your hands to your eyes.
Smoking and exposure to secondhand smoke directly damage the tear film’s lipid layer, causing tears to evaporate more quickly. Cigarette smoke contains thousands of chemicals that irritate the eye surface and increase inflammation throughout the body.
Poor eye makeup habits can also contribute to dry eye problems. Waterproof cosmetics and products applied to the inner eyelid can clog the oil glands responsible for stabilising tears. Using expired makeup or sharing cosmetics increases infection risk.
When your eyes feel uncomfortable, use preservative-free artificial tears or apply a cool compress instead of rubbing. Avoid smoking and secondhand smoke exposure. Choose hypoallergenic, fragrance-free eye makeup, apply it only to the outer lash line, and replace products every three to six months.
When Daily Changes Aren’t Enough
While lifestyle modifications can provide significant relief for mild to moderate dry eye symptoms, persistent or severe symptoms may require professional evaluation. Changes to daily habits work best when combined with appropriate medical treatment tailored to your specific condition.
Chronic dry eye can indicate underlying issues such as meibomian gland dysfunction, hormonal changes, or autoimmune conditions that require targeted treatment approaches. Advanced therapies, including intense pulsed light (IPL) treatment, can address root causes that lifestyle changes alone cannot resolve.
Taking Control of Your Eye Comfort
Simple daily habits often contribute more to dry eye symptoms than people realise. By making conscious changes to screen time, contact lens use, environmental exposure, hydration, sleep, and eye care practices, you can significantly reduce discomfort and support long-term eye health.
If symptoms persist despite these modifications, don’t hesitate to book an eye examination. Professional evaluation can identify underlying causes and provide targeted treatments to help you achieve lasting relief and protect your vision for years to come.
Dr Sophie Dao is the co-owner and principal optometrist at Northbridge Optical, bringing more than 15 years of experience in boutique private practice. A UNSW graduate with Honours and full therapeutic endorsement, she is passionate about providing personalised, high-quality eye care for patients of all ages.
With a special interest in myopia management, Sophie has helped hundreds of children slow the progression of short-sightedness through treatments such as orthokeratology, atropine therapy and advanced myopia-control lenses. As someone who is short-sighted herself and a parent of young children, she understands firsthand the importance of early intervention and long-term vision health.
Sophie believes in creating a welcoming, community-focused experience where every patient feels understood and cared for. When she’s not in the practice, she enjoys spending time with her family and keeping up with the latest research in clinical optometry.
