Klaus Ehrmann has been at the forefront of ophthalmic research for the last 30 years. He published over 50 papers in peer reviewed journals and holds numerous patents in the areas of vision correction devices and ophthalmic instrumentation. He regularly presents his work at international ophthalmic or technical conferences and has been invited speaker or session chair at several of them. He is a member of the ISO working group responsible for the development of standards for ophthalmic lenses. He is also a member of several professional associations, including ARVO, AAAS, ISCLR and SPIE.

His achievements have been recognised by the BCLA by honouring him with the Da Vinci Award in 2000 for the development of a novel instrument for the in-vivo measurement of eyelid tension. In 2009, he won the J Lloyd Hewett Award for his publication on his Ex-vivo Accommodation Simulator instrument. The VDC presented him with the Peter Abel Wissenschaftspreis in 1998 for his outstanding scientific research contribution in the field of contact lens metrology.

Through his visiting appointment at the SOVS at the University of New South Wales, he supervised 5 PhD and one MSc candidate.Klaus Ehrmann was educated at the University of Aalen graduating 1986 with a BSc in Mechatronics, the University of Cranfield (UK), completing a MSc 1988 in ‘Innovative Design for Manufacture of Machine Systems', and at the University of New South Wales (Australia), where he earned a PhD in Biomedical Engineering in 1997. For 27 years he worked for the Brien Holden Vision Institute before co-founding nthalmic technologies in 2019, where he currently is the Director of Technology.