Power adjustment of adjustable lens

System to modify radiation refractive power of an adjustable lens with light, the system comprising: a diagnostic including a sensor wavefront (70) adapted to measure at least one optical aberration in an optical system containing the lens and to determine a correction for the same; a source of radiation (12); a forming beam current (18) adapted to generate a pattern of radiation from the radiation source, a pattern that corresponds to the aberration correction, a system emission beam (14, 32, 34, 40) adapted to projecting radiation from the irradiation source over the forming beam current and to project the radiation pattern from the forming beam intensity on the lens; alignment means (42) adapted to place the radiation pattern in the lens; It characterized in that the system further comprises a calibration element adapted to monitor the power and intensity profile of the irradiation, and a locking element adapted to apply radiation blocking in the lens to block the modified refractive power thereof, and radiation irradiation source has a wavelength in the range 350 to 380 nm and is applied to the lens at an intensity of 9.75 to 12.25 mW / cm2.