An ophthalmological laser system comprising: a laser light source , the radiation of which is focusable as a laser illumination light beam, wherein the laser is a pulse laser and the laser illumination light beam comprises a sequence of light pulses of average time duration between 100 femtoseconds and 100 milliseconds; at least one processor; memory; and at least one program stored in the memory and executable by the at least one processor, the at least one program comprising instructions when executed, performs operations comprising: obtaining a predetermined pattern characterized by a plurality of positions along an iris dilator muscle tissue of an eye of a patient; aligning said laser illumination light beam in accordance with one or more of the plurality of positions along the iris dilator muscle tissue; delivering said laser illumination light beam in the predetermined pattern on a surface of the eye of the patient to target the iris dilator muscle tissue; and cauterizing at least a subset of the iris dilator muscle tissue by delivering the laser illumination light beam in the predetermined pattern to weaken or scarify the subset of the iris dilator muscle tissue for reducing a contraction capacity of the subset of the iris dilator muscle tissue. a laser light source , the radiation of which is focusable as a laser illumination light beam, wherein the laser is a pulse laser and the laser illumination light beam comprises a sequence of light pulses of average time duration between 100 femtoseconds and 100 milliseconds; at least one processor; memory; and at least one program stored in the memory and executable by the at least one processor, the at least one program comprising instructions when executed, performs operations comprising: obtaining a predetermined pattern characterized by a plurality of positions along an iris dilator muscle tissue of an eye of a patient; aligning said laser illumination light beam in accordance with one or more of the plurality of positions along the iris dilator muscle tissue; delivering said laser illumination light beam in the predetermined pattern on a surface of the eye of the patient to target the iris dilator muscle tissue; and cauterizing at least a subset of the iris dilator muscle tissue by delivering the laser illumination light beam in the predetermined pattern to weaken or scarify the subset of the iris dilator muscle tissue for reducing a contraction capacity of the subset of the iris dilator muscle tissue. obtaining a predetermined pattern characterized by a plurality of positions along an iris dilator muscle tissue of an eye of a patient; aligning said laser illumination light beam in accordance with one or more of the plurality of positions along the iris dilator muscle tissue; delivering said laser illumination light beam in the predetermined pattern on a surface of the eye of the patient to target the iris dilator muscle tissue; and cauterizing at least a subset of the iris dilator muscle tissue by delivering the laser illumination light beam in the predetermined pattern to weaken or scarify the subset of the iris dilator muscle tissue for reducing a contraction capacity of the subset of the iris dilator muscle tissue. <EOS>