Immunoelectrophoresis of tears yielded seven visible components. These were identified with specific antisera as specific tear prealbumin, serum albumin, ceruloplasmin, transferrin, IgA, IgG, and lysozyme. Specific tear prealbumin is a unique tear component. Tear IgA has a specific antigenic moiety not present in serum IgA. The importance of these seven proteins is discussed.