After @ month of daily contact lens wearing , each subject 's binocular distance visual acuity ( BDVA ) and binocular distance contrast sensitivity ( BDCS ) were measured using the Functional Visual Analyzer ( Stereo Optical Co. , Inc. ) under mesopic conditions ( @ candela -LSB- cd -RSB- / m ) both with no glare and under the @ levels of induced glare : @ lux ( glare @ ) and @ lux ( glare @ ) .