The selected lenses used in this study were the Tecnis Z9001® (Model Z9001, Advanced Medical Optics, Santa Ana, CA) and the ClariFlexTM (Advanced medical Optics, Santa Ana, CA) (Table 1). Eyes in Group 1 (n=25) received the Tecnis Z9001® (Model Z9001) and eyes in Group 2 (n=25) received the ClariFlexTM (Table 1).