A system of modifying an intraocular device located within an eye, wherein thesystem includes a laser assembly(14, 16, 20, 26, 28) and a controller (22) coupled to the laser assembly. Thelaser assembly outputs a pulsed laser beam having apulse width between about 300 picoseconds and about 10 femtoseconds, and thecontroller directs the laser assembly to output thepulsed laser beam into the intraocular device. One or more slip zones areformed within the intraocular device in response thereto,and the slip zones are configured to modify a refractive profile of theintraocular device.