Intraocular lens with photosensitizer and method for modifying the refractive index of the lens

There is provided a guide lens including an optical polymer material having a predetermined area in which a light is irradiated from a laser to generate a refraction structure. The refractive structure is characterized by a refractive index change in the irradiated region of the lens with little or no scattering loss. To facilitate the creation of refractive structures, the optical polymer material is prepared from one or more monomers having optical functionality with two-photon cross-sections of 10 GM or more. The present invention also relates to a method for modifying the refractive index of an intraocular lens prior to inserting the intraocular lens into the human eye. The described illumination method is used in a manufacturing environment that creates a refractive structure in the guide lens. The method includes irradiating light from a laser to a predetermined area of ​​the solvated guide lens to create a refraction structure.