This tonometer is intended for ophthalmologists, because the device is also useful when measuring intraocular pressure in non-compliant patients (f.e. children and dementia patients) It is also used by general practitioners, optometrists, occupational health care and other medical personnel. Icare® TA-01 can also be used for the home monitoring of IOP. The tonometer is based on a new measuring principle, in which a very light probe is used to make momentary contact with the cornea. The measurement is barely noticed by the patient and often does not even cause corneal reflex.