Gland imaging is a non-invasive test that helps the doctor analyze the health of the meibomian glands. This technology is used to diagnose meibomian gland dysfunction (MGD), which indicates an abnormality or blockage of the meibomian glands. When these glands are not working properly, it results in a reduction of oil secreted into tears, which leads to dry eye syndrome. MGD is the leading cause of dry eye syndrome- approximately 86% of dry eye patients suffer from MGD.