Yvonne Gier holds seminars and lectures on the subject of contact lenses and is also responsible for internal projects. Since 2013, she has also worked as a fitter in the contact lens consultation at the University Eye Hospital in Freiburg, where she has been head of the consultation since 2017. In addition to lens fittings for irregular corneas (e.g. keratoconus, post-keratoplasty), she has been able to expand her expertise in the field of dry eye management using scleral lens fitting in recent years.