Gunther Weiss Scientific Glass

Gunther Weiss Scientific is a U.S.-based medical device manufacturer specializing in glass ophthalmic devices. The company is best known for Lester T. Jones Tear Duct Tubes used in conjunctivodacryocystorhinostomy (CDCR) to bypass the lacrimal drainage system, and it also supplies glass cannulas used in corneal tissue transport for DMEK and DSAEK procedures. The business states that it has supported lacrimal bypass surgery since 1963 and markets made-in-the-USA products that are ISO certified and FDA registered. Rather than operating as a drug-development biotech, it appears to be a niche commercial ophthalmic device supplier focused on ophthalmology and surgical support products.