A prospective , randomized , double-masked , clinical trial was designed to evaluate distance and near contrast sensitivity ( CS ) in patients symmetrically , and randomly , implanted with 4 different multifocal intraocular lens ( MIOL ) designs ( ReSTOR SN6AD1 , ReSTOR SN60D3 , ReZoom NXG , and Tecnis ZMA00 ) and a monofocal control group ( Tecnis ZA9003 ) , 6 months after cataract intervention .
