Good-quality tears depend on a balanced and effective tear film. The tear film is made up of 3 layers—a mucus layer to spread the tears over the surface of the eye, a water layer to hydrate the eye, and an oil layer to keep the water from evaporating too quickly. If there’s an imbalance in the tear film, dry eye can result.
The tiny glands along the top and bottom edges of the eyelids, called the meibomian glands, are responsible for producing the oil layer of your tear film. Blockages in these glands can cause a reduction in the amount of oil produced, leading to dry eyes.
When we diagnose your dry eye, we’ll also look at the condition of your meibomian glands and recommend treatment options if they’re not functioning properly.