Common Causes of Dry Eye (And What You Can Do About Them)

Dry eye can make your eyes feel irritated, gritty, watery, or tired, and it can also cause blurry vision that comes and goes throughout the day. While many people reach for over-the-counter eye drops first, dry eye often has an underlying cause that needs more targeted care. One of the most common causes is Meibomian Gland Dysfunction, also known as MGD.

What Causes Dry Eye?

Dry eye happens when your eyes do not produce enough tears or when your tears evaporate too quickly. Healthy tears have several layers, including an oily layer that helps keep moisture on the surface of the eye. When this layer is missing or unstable, tears can evaporate faster than they should.

Common dry eye triggers include aging, screen use, allergies, certain medications, hormonal changes, contact lens wear, environmental dryness, and eyelid inflammation. For many patients, the issue is connected to the tiny oil glands along the eyelids.

How Meibomian Gland Dysfunction Affects Your Eyes

The meibomian glands line the edges of the eyelids and release oil into the tear film. This oil helps prevent tears from evaporating too quickly. When the glands become clogged, thickened, or inflamed, they may not release enough quality oil. This can lead to evaporative dry eye.

MGD can cause burning, stinging, redness, watery eyes, light sensitivity, and fluctuating vision. Some people also notice crusting along the lashes or a heavy feeling in the eyelids. Because symptoms can overlap with allergies or general eye irritation, a dry eye evaluation is important for finding the right cause.

Why Eye Drops May Not Be Enough

Artificial tears can help lubricate the eyes, but they may only provide temporary relief if MGD is the main problem. Without enough healthy oil in the tear film, the moisture from eye drops can evaporate quickly. This is why some people feel better for a short time, only to have symptoms return soon after.

A more effective dry eye plan often focuses on improving tear quality, supporting the eyelid glands, and reducing inflammation when needed.

What You Can Do About Dry Eye

Some dry eye symptoms can be managed with simple habits, but persistent discomfort should be evaluated by an eye doctor. Depending on the cause and severity of your symptoms, recommendations may include:

• Warm compresses to help loosen clogged oil in the meibomian glands
• Artificial tears recommended for your specific type of dry eye
• Eyelid hygiene to reduce buildup and irritation along the lash line
• Omega-3 supplementation when appropriate
• Manual gland expression or in-office support when needed
• Prescription options such as anti-inflammatory drops or medications for more advanced cases

Dr. Chang and Dr. Rachal may recommend warm compresses as an early step for MGD because heat can gently soften thickened oil and help the glands open. However, warm compresses are often only part of the plan. Some patients need additional therapies to reduce inflammation, improve oil flow, or support long-term tear stability.

When To Schedule A Dry Eye Evaluation

If your eyes feel dry, irritated, watery, or blurry on a regular basis, it is worth scheduling an eye exam. Dry eye can become more frustrating over time when the underlying cause is not addressed. A personalized evaluation can help determine whether MGD, tear evaporation, inflammation, or another factor is contributing to your symptoms.

Contact Niwot Eyecare & Vision Therapy in Niwot, CO at (303) 652-0505 to schedule a dry eye evaluation and learn which treatment options may help improve your comfort.