What Is Dry Eye and Why Does It Happen?

If your eyes often feel irritated, gritty, watery, or tired, you may be experiencing dry eye. Dry eye is a common condition that affects millions of people and can significantly impact daily comfort and clear vision. At Greenlake Eye Care, we frequently help patients understand the causes of dry eye and find effective solutions tailored to their needs.

What Is Dry Eye?

Dry eye occurs when your eyes do not produce enough tears or when the tears you produce evaporate too quickly. Healthy tears are essential for maintaining clear vision and keeping the surface of the eye smooth and comfortable. They are made up of three key layers - oil, water, and mucus - that work together to lubricate and protect the eye. When this delicate balance is disrupted, the result can be inflammation and damage to the surface of the eye.

Common Symptoms of Dry Eye

Dry eye symptoms can range from mild to severe and may include:

A stinging, burning, or scratchy sensation
Redness
Sensitivity to light
Blurred vision that improves with blinking
A feeling like something is in your eye
Watery eyes
Eye fatigue, especially after reading or screen use

Symptoms may worsen in certain environments, such as windy conditions, air-conditioned rooms, or during prolonged computer use.

Why Does Dry Eye Happen?

Dry eye can develop for several reasons, and often more than one factor is involved.

1. Reduced Tear Production

As we age, tear production naturally decreases. Hormonal changes, particularly in women during pregnancy or menopause, can also contribute. Certain medical conditions, including autoimmune disorders, may reduce the body’s ability to produce adequate tears.

2. Poor Tear Quality

Even if your eyes produce enough tears, they may evaporate too quickly. This often occurs when the oil glands along the eyelids (meibomian glands) are blocked or not functioning properly. Without sufficient oil in the tear film, moisture evaporates too rapidly.

3. Screen Time and Lifestyle Factors

Extended screen use reduces how often we blink, which prevents tears from spreading evenly across the surface of the eye. Contact lens wear, smoking, and frequent exposure to dry or windy environments can also contribute to dry eye.

4. Medications

Some medications, including antihistamines, decongestants, certain antidepressants, and blood pressure medications, may reduce tear production as a side effect.

When Should You See Your Eye Doctor?

Occasional dryness may improve with over-the-counter artificial tears and simple lifestyle adjustments. However, it’s important to schedule an eye exam if:

Symptoms persist for more than a few days
Over-the-counter drops provide little or no relief
Your vision becomes consistently blurry
You experience significant pain or light sensitivity
Dry eye interferes with work, driving, or daily activities

Chronic dry eye can lead to inflammation and damage to the eye’s surface if left untreated. An eye doctor can determine the underlying cause and recommend targeted treatments, which may include prescription eye drops, in-office therapies, eyelid treatments, or lifestyle modifications.

How Dry Eye Is Diagnosed and Treated

At Greenlake Eye Care, we perform a comprehensive evaluation to assess tear production, tear quality, and eyelid health. Treatment plans are personalized and may include:

Artificial tears or prescription eye drops
Warm compresses and eyelid hygiene
Omega-3 supplements
Punctal plugs to conserve tears
Advanced in-office therapies for meibomian gland dysfunction

Early diagnosis makes a significant difference in preventing long-term discomfort and complications.

Take the First Step Toward Comfortable Vision

Dry eye is more than just an occasional annoyance - it is a medical condition that can affect your comfort, vision, and quality of life. Because dry eye has many possible causes, proper diagnosis is key to finding lasting relief. If you’re experiencing ongoing irritation, redness, or blurry vision, professional care can help restore comfort and protect your eye health.

Contact Greenlake Eye Care for a dry eye evaluation and personalized treatment plan designed to keep your eyes healthy and comfortable. Visit our office in Greenacres, Florida, or call (561) 220-6272 to book an appointment today.