title: [Risk of transmission of hepatitis B through contact lens fitting set].
abstract: 8 out of 19 cases of acute or chronic hepatitis, with positive hepatitis B surface antigen (HBsAg) had HBsAg-positive tears. In 25 healthy HBsAg carriers, no HBsAg was found in the tears. The HBsAg concentration in the tears of hepatitis patients was less than 1% of the HBsAg in their blood. Contact lenses (soft hydrophilic, silicone) experimentally contaminated with HBsAg were practically free of it after the usual cleaning and washing with a commercial contact lens cleaning fluid. No adsorption of HBsAg was found on hydrophilic soft lenses; a minimal adsorption on silicone lenses could not be entirely excluded, but practically it was without any importance. In 14 samples of 79 storage fluids of a contact lens fitting set HBsAg was found. The cause of this contamination is not clear.
mesh_terms: D000208:Acute Disease; D000327:Adsorption; D002908:Chronic Disease; D003263:Contact Lenses, Hydrophilic / Q000009:adverse effects*; D006509:Hepatitis B / Q000635:transmission*; D006514:Hepatitis B Surface Antigens / Q000032:analysis; D006801:Humans; D013666:Tears / Q000276:immunology
chemical_list: D006514:Hepatitis B Surface Antigens
vernacular_title: Das Risiko einer Ubertragung von Hepatitis B durch Kontaktlinsenanpassung.