1. Department of Biomedical Computer Systems; University of Silesia; Faculty of Computer Science and Materials Science, Institute of Computer Science; ul. Będzińska 39 Sosnowiec 41-200 Poland
2. Department of Ophthalmology of the Federal University of São Paulo & Rio de Janeiro Corneal Tomography and Biomechanics Study Group of the Instituto de Olhos Renato Ambrósio; Rua Conde de Bonfim 211 / 712 Rio de Janeiro RJ - CEP: 20520-050 Brasil
3. OCULUS Optikgeräte GmbH; Münchholzhäuser Straße 29 35582 Wetzlar Germany