After 1 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 ( 3 candela [ cd ] / m ) both with no glare and under the 2 levels of induced glare : 1.0 lux ( glare 1 ) and 28 lux ( glare 2 ) .