All participants were fitted with the four different SIMCLs ( Air Optix Aqua Multifocal [ AOAM ; Alcon ] , PureVision Multifocal [ PM ; Bausch & Lomb ] , Acuvue Oasys for Presbyopia [ AOP ; Johnson & Johnson Vision ] , and Biofinity Multifocal [ BM ; CooperVision ] ) and with monofocal contact lenses ( Air Optix Aqua , Alcon ) .