Causes and Risk Factors of Dry Eye
Dry eye can develop due to a combination of age-related, environmental, lifestyle, medical and medication-related factors.
Common Causes
Reduced tear production.
Excessive tear evaporation.
Meibomian gland dysfunction.
Eyelid inflammation or blepharitis.
Prolonged screen use and reduced blinking.
Contact lens use.
Wind, smoke and dry environments.
Certain medications.
Hormonal changes.
Previous refractive eye surgery.
Certain autoimmune or systemic conditions.
Who Is More Likely to Experience Dry Eye?
Dry eye can affect people of all ages, but it may be more common among:
Adults aged 50 and above.
People who spend long hours using computers or smartphones.
Contact lens users.
People working in air-conditioned environments.
Individuals with eyelid inflammation.
People with certain autoimmune conditions.
Individuals taking medicines that can contribute to dryness.
People who have undergone certain eye procedures.
Important: Do not stop prescribed medicines on your own if you suspect they are contributing to dry eye. Discuss your symptoms and medication history with your doctor.
Why Is Dry Eye Evaluation Important?
Dry eye symptoms may seem minor initially, but persistent or untreated disease can affect comfort, daily activities and visual function. In some cases, severe dry eye can damage the corneal surface.
A professional evaluation helps to:
Identify whether symptoms are caused by dry eye or another condition.
Assess tear quantity and tear-film stability.
Examine the eyelids and ocular surface.
Identify possible contributing factors.
Determine whether additional testing is required.
Guide suitable treatment and follow-up.
Monitor persistent or recurrent symptoms.
A key point: Not every case of redness, burning or irritation is dry eye. A clinical examination helps distinguish dry eye from other causes of ocular discomfort.
What Happens During a Dry Eye Evaluation?
At Eye Studio Clinic, the consultation can begin with a review of your symptoms, medical history and daily activities, followed by an eye examination to assess the ocular surface.
Depending on your symptoms and clinical findings, an ophthalmologist may recommend one or more of the following tests.
1. Slit-Lamp Examination
A slit-lamp microscope allows the ophthalmologist to examine the eyelids, tear film, conjunctiva and cornea. It helps identify signs of irritation, inflammation and surface damage.
2. Schirmer's Test
This test helps assess tear production. A small paper strip is placed near the lower eyelid, and the amount of moisture collected over a set period is measured.
3. Tear Break-Up Time (TBUT)
This test evaluates how long the tear film remains stable after blinking. A shorter break-up time may indicate tear-film instability.
4. Eyelid and Meibomian Gland Assessment
The doctor may examine the eyelid margins and oil-producing glands to identify blockage, inflammation or other factors that could contribute to tear evaporation.
5. Ocular Surface Staining
Special diagnostic dyes may be used to highlight areas of damage or dryness on the cornea and conjunctiva.
The specific tests required depend on the patient's symptoms and examination findings. Not every patient needs every test. Please confirm the availability of individual diagnostic tests with the clinic before your visit.
Dry Eye Treatment and Management Options
Dry eye management depends on the underlying cause, severity of symptoms and examination findings. Treatment often involves a combination of eye drops, eyelid care, lifestyle changes and follow-up.
A. Lubricating Eye Drops
Artificial tears may help supplement the natural tear film and relieve dryness or irritation. The type and frequency should be selected according to the patient's needs.
For people who require frequent use, preservative-free lubricating drops may be recommended.
B. Prescription Eye Medication
Some patients may require prescription medicines to manage inflammation or improve tear production. These should be used only under medical guidance.
C. Warm Compresses and Eyelid Hygiene
When meibomian gland dysfunction or eyelid inflammation contributes to dry eye, an ophthalmologist may recommend warm compresses and appropriate eyelid-cleaning practices.
D. Lifestyle and Environmental Changes
Simple adjustments may help reduce symptoms:
Take regular breaks during prolonged screen use.
Blink consciously while reading or using digital devices.
Avoid direct airflow from fans or air conditioners.
Consider a humidifier in particularly dry indoor environments.
Wear protective eyewear in windy conditions.
Follow recommended contact lens hygiene.
Stay hydrated and maintain general health.
E. Tear-Conserving Procedures
For selected patients with persistent dry eye, an ophthalmologist may consider procedures such as punctal plugs to help retain tears on the eye's surface. These are not appropriate for everyone and require individual assessment.
Treatment note: Dry eye is often a chronic condition that requires ongoing management rather than a one-time treatment. The goal is to reduce symptoms, maintain visual function and protect the ocular surface.
