Santen Incorporated engages in the research, development, manufacture, and marketing of ophthalmic products covering a range of conditions, from allergy and infection to glaucoma. The company offers prescription and over-the-counter products for the treatment of eye and rheumatic diseases. Its products comprise IQUIX, Quixin, Betimo and Alamast. Santen Incorporated has a strategic research collaboration with twoXAR Inc. The company was founded in 1993 and is based in Napa, California.