Study population of @ subjects with KAMRA inlays ; predetermined subgroups included @ subjects that underwent contrast sensitivity testing and another @ subjects for defocus curve testing , along with @ subjects randomized between bilateral Crystalens Advanced Optics ( AO ) ( Bausch + Lomb Surgical , Aliso Viejo , California , USA ) , AcrySof IQ ReSTOR +@ D ( Alcon Laboratories , Fort Worth , Texas , USA ) , or Tecnis +@ D Multifocal ( MF ) ( Abbott Medical Optics , Santa Ana , California , USA ) IOL .