Patent ID: 8887734

Claim:
Process for iteratively generating a control program that controls electromagnetic radiation for cross-linking in eye tissue of a patient with a photosensitiser introduced into the eye tissue in order to bring about a change in the eye tissue with reference to at least one of (A) its form or (B) at least one of its mechanical properties, the process comprising: a) acquiring measurement data with reference to the patient and the eye; b) based on the measurement data and treatment parameters, the treatment parameters being parameters of a predetermined auxiliary control program for controlling a source of the electromagnetic radiation, obtaining a simulated change in the eye tissue the simulated change determined by a computer simulating a diffusion of the photosensitiser for the purpose of determining a distribution of the photosensitiser and determining a depth-dependent absorption of the radiation on the basis of the simulated distribution of the photosensitiser; c) comparing the simulated change with a change in the eye tissue to be achieved; d) if step c) yields a sufficient agreement between the simulated change and the change in the eye tissue to be achieved, choosing the auxiliary control program that includes the treatment parameters applied in step b) as the control program to be generated; and e) if in step c) the comparison does not yield a sufficient agreement between the simulated change and the change in the eye tissue to be achieved, modifying at least one of the treatment parameters in step b) and repeating steps b), c) and d).