monocular accommodation responses to stimuli at vergences from 0 to -4.5 d ( i.e . effective object-eye distances from infinity to 22 cm ) were measured objectively using artificial pupils of 0.5 , 0.75 , 1.0 and 3.0 mm diameters and a constant retinal illuminance of 7000 td .
C0015392
eye
C0035298
retinal