An intraocular lens having an optic and a plurality of fixation members coupled to the optic. The fixation members are adapted to be evenly circumferentially distributed about the anterior chamber to reduce the phenomenon of malshaping the iris, for example, pupil ovalling. ...http://www.google.es/patents/US20030050697?utm_source=gb-gplus-sharePatente US20030050697 - Anterior chamber intraocular lens and methods for reducing pupil ovalling
Anterior chamber intraocular lens and methods for reducing pupil ovalling