What Causes Dry Eye Disease? Dry Eyes Signs and Symptoms

If the tears are missing, it can damage the cornea. The primary elements of tears are watery, oily or liquid, and mucous-like or mucin. Each of these components are equally important for the healthy eyes. Every ingredient has its own goals. For instance, a mucous-like element assists with anchoring the tears across the eye’s surface. What about an oily component? Its purpose is to prevent tear film from evaporating. It also increases lubrication.