The realization of the rebound method and its equipment has involved a number of partners, including the Helsinki University Eye Clinic in the clinical testing, and the Mount Sinai Medical School in the US in developing the veterinary modification of the instrument.

Today the Icare® tonometer has obtained world wide official clearances (CE, US FDA, CFDA etc.) and tens of thousands of satisfied users in over 50 countries. Clinical studies show that the data obtained by Icare® is fully comparable to measuring results with the Goldman Applanation Tonometer (GAT).

Icare Finland's former name is Tiolat Oy. On August  2008 the company name was changed to Icare Finland Oy.