The eye care medical field has an unusual split between two different types of insurance for covering eye issues: health insurance and vision insurance. Not all patients have both.

In most cases, your health insurance is used to cover medical and...

The tears that coat the surface of your eyes have both a liquid and a mucous layer to them. It is normal to have a small amount of mucus in your tear film. But that mucus can significantly increase when the eye gets irritated.

Some of the most...