title: Observation of two structures of the tear film lipid layer.
abstract: The behaviour of the tear film exposed to the atmosphere for a relatively long time was observed by means of a Nomarski microscope and the Zeiss slit-lamp microscope SL 75. It was observed that the lipid layer of the tear film on the naked eye as well as over the contact lens consists of two structures: the homogeneous structure and a structure exhibiting a micelle-like one. The phenomenon is explained in terms of the specific properties of the different lipids in the gland secretions.
authors.affiliation: Staatliche Fachschule für Optik und Fototechnik Berlin, West Germany.
authors.forename: G
authors.initials: G
authors.lastname: Forst
mesh_terms: D003116:Color; D003261:Contact Lenses; D006801:Humans; D008055:Lipids / Q000502:physiology*; D008857:Microscopy, Interference; D008858:Microscopy, Phase-Contrast; D012907:Smoking; D013666:Tears / Q000033:anatomy & histology* / Q000502:physiology
chemical_list: D008055:Lipids