We specialize in Lester T. Jones Tear Duct Tubes for conjunctivodacryocystorhinostomy (CDCR) and descemet membrane endothelial keratoplasty (DMEK). Gunther Weiss Scientific has been providing solutions for Lacrimal Bypass Surgery (CDCR) since 1963. You can search our products by their name or the 5 digit prefix (e.g. 'jones tube frosted' or '10100'). View prefix guide for help.