Understanding Dry Eye Syndrome: Causes, Symptoms, and Risk Factors

Dry Eye Syndrome is one of the most common eye conditions affecting people worldwide. It occurs when the eyes do not produce enough tears, or when tears evaporate too quickly, resulting in irritation, discomfort, and fluctuating vision.

Although dry eyes may seem like a minor inconvenience, untreated Dry Eye Syndrome can significantly affect daily comfort, productivity, and long-term eye health. Understanding the causes and recognising early symptoms are important steps toward proper treatment.

At iSurgeon, patients receive expert evaluation and personalised treatment plans to effectively manage Dry Eye Syndrome.

What Is Dry Eye Syndrome?

Dry Eye Syndrome occurs when the tear film that protects the eye becomes unstable.

The tear film is made up of three important layers:

• Oil layer – prevents tears from evaporating too quickly
• Water layer – hydrates and nourishes the eye surface
• Mucus layer – helps tears spread evenly across the eye

When any of these layers are disrupted, the eye surface becomes dry and irritated.

Dry eye can range from mild discomfort to persistent inflammation, depending on the underlying cause.

Common Symptoms of Dry Eye Syndrome

People with Dry Eye Syndrome may experience a variety of symptoms that can worsen throughout the day.

Typical symptoms include:

• Burning or stinging sensation in the eyes
• Redness and irritation
• Gritty feeling, as if something is in the eye
• Blurred or fluctuating vision
• Sensitivity to light
• Watery eyes (a reflex response to dryness)
• Eye fatigue, especially during reading or screen use

Because symptoms can overlap with those of other eye conditions, a professional eye examination is important for an accurate diagnosis.

Causes of Dry Eye Syndrome

Dry Eye Syndrome can develop for several reasons, often involving a combination of environmental, lifestyle, and medical factors.

Ageing

Tear production naturally decreases with age. Dry eye is particularly common in individuals over the age of 50.

Digital Screen Use

Prolonged use of computers, smartphones, and tablets reduces blinking frequency, leading to increased tear evaporation.

Environmental Factors

Wind, air conditioning, heating systems, and dry climates can all contribute to tear film instability.

Hormonal Changes

Hormonal fluctuations, particularly during menopause, may increase the risk of dry eyes.

Contact Lens Wear

Long-term contact lens use may irritate the eye surface and contribute to dryness.

Certain Medications

Some medications can reduce tear production, including antihistamines, antidepressants, and blood pressure medications.

Why Early Diagnosis Matters

When Dry Eye Syndrome is left untreated, it may lead to:

• Chronic inflammation of the eye surface
• Increased risk of infection
• Damage to the cornea
• Persistent visual discomfort

Early diagnosis allows ophthalmologists to identify the underlying cause and recommend the most effective treatment strategy.

At iSurgeon, comprehensive eye examinations include advanced diagnostic testing to evaluate tear quality, tear production, and ocular surface health.

When to See an Eye Specialist

If you experience ongoing eye irritation, blurred vision, or discomfort that does not improve with artificial tears, it is advisable to seek professional advice.

Early treatment can significantly improve comfort and help protect long-term eye health.