Humphrey Instruments

Humphrey Instruments is a pioneering medical technology company specializing in ophthalmic diagnostic equipment. Best known for the Humphrey Field Analyzer (HFA), the company established the global gold standard for automated perimetry used in the diagnosis and management of glaucoma. Originally an independent entity founded in 1971, it was acquired by Carl Zeiss in 1992 and now operates as a core part of Carl Zeiss Meditec. Its product portfolio includes advanced visual field testing devices and imaging technologies that are essential in clinical eye care. The company's innovations, such as the SITA testing strategy, have significantly reduced testing time while maintaining high clinical accuracy. Today, Humphrey-branded instruments are foundational tools in optometric and ophthalmic practices worldwide.