Founded in 1858, Haag-Streit USA supplies ophthalmic diagnostic and surgical equipment, training simulators, and related systems to eye-care professionals. It is the U.S. arm of a Swiss-headquartered group whose Köniz operation develops and produces high-precision ophthalmic examination devices, while the wider organization combines eye-care manufacturing with medical simulation and digital technologies. Haag-Streit’s slit lamps are supported by a 10-year limited warranty, underscoring the company’s emphasis on long service life.