What Causes Dry Eyes? 8 Triggers Most People Miss

Dry eye is rarely caused by one thing. It's usually a stack of small factors that add up until your eyes finally complain. Here are the triggers we see most often in Goleta patients.

1. Screens

Blink rate drops by more than half during focused screen work. Fewer blinks means the tear film breaks up before it's replenished.

2. Meibomian gland dysfunction

Tiny oil glands along the lash line keep tears from evaporating. When they clog, tears vanish within seconds no matter how many you produce. This is the single most common cause we diagnose.

3. Contact lenses

Lenses sit in the tear film and use it up. Older materials and extended wear schedules make it worse.

4. Medications

Antihistamines, antidepressants, blood pressure medications, acne treatments, and hormonal birth control all reduce tear production.

5. Coastal wind and dry air

Offshore winds and air conditioning pull moisture off the eye surface all day, and most people never connect the two.

6. Allergies

Allergic inflammation and the antihistamines used to treat it both destabilize the tear film.

7. Age and hormones

Tear production declines with age, and perimenopause commonly brings a noticeable drop.

8. Autoimmune conditions

Sjogren's syndrome, rheumatoid arthritis, and thyroid disease frequently show up in the eyes first.

The takeaway

Because the causes differ so much, the fix does too. An exam that evaluates your tear film and oil glands tells us which of these is driving your symptoms, and that's what makes treatment actually work.