Most cases of chronic dry eye stem from meibomian gland dysfunction. Here's what's really happening — and the in-office therapies that actually help.
Dry eye is often described as a simple lack of tears, but for many patients the issue is more specific. The tears may be present, yet they evaporate too quickly because the oil layer of the tear film is unstable. That oil layer is produced by the meibomian glands, a row of tiny glands in the eyelids that can become blocked, inflamed, or underactive over time.
When the glands are not working well, artificial tears may provide short-term comfort but rarely address the source of the problem. Patients often find themselves using drops more frequently while still feeling burning, watering, gritty sensation, or fluctuating vision by the end of the day.
Why evaporative dry eye behaves differently
A healthy tear film has three coordinated layers: mucin to help tears spread, water for hydration, and oil to seal the surface. In evaporative dry eye, the oil layer is thin or poor quality. The eye responds by producing more watery tears, which is why some people with dry eye are surprised that their eyes water constantly.
The goal is not simply to add moisture. The goal is to restore a more stable tear film so your eyes can hold moisture naturally.
Common clues we hear from patients
- Vision that clears after blinking, then blurs again
- Burning or sandy sensation that worsens with screens
- Redness along the lid margins
- Contact lens discomfort after years of successful wear
- Watery eyes outdoors, in wind, or while driving
How we evaluate the glands
A dry eye evaluation looks at more than symptoms. We examine the eyelids, gland openings, tear breakup time, surface staining, blink quality, and signs of inflammation. In many cases we also image the glands to see whether they are shortened, clogged, or structurally compromised.
This matters because treatment should match the findings. A patient with mild gland congestion needs a different plan than someone with significant inflammation, rosacea-related lid disease, or long-standing gland dropout.
Treatment is usually layered
For many patients, lasting relief comes from combining at-home habits with in-office therapies. Warm compresses, lid hygiene, omega support, prescription drops, and environmental changes can all help. When glands are blocked or inflammation is driving symptoms, treatments like IPL, radiofrequency, or low-level light therapy may be recommended to improve gland function and comfort.
The earlier we identify meibomian gland dysfunction, the more opportunity we have to protect the glands that remain healthy. If you are relying on drops several times a day or your symptoms keep returning, a focused dry eye workup can provide a much clearer path forward.
