[Physiology and pathology of tear film in the course of dry eye syndrome].

Due to the grow-up of number of patients suffering from signs of dry-eye syndrome we are obligated to investigate physiology and pathology of tear film. Data obtained from patients with Sjögren Syndrome and other types of lacrimal dysfunction shows that the expectations for break-up in dry-eye treatment strategy are very high. In our review we are presenting contemporary views concerning tear film production and tear deficiency with special look at the treatment possibilities.