An eye measurement system may include a target that moves transverse to an opticalpath from the target to eye, so as to relax accommodation of the lens of the eye.The target may move transverse to the optical path on a display. The patient maybe fogged while the target moves transverse to the optical path, and the targetmay become smaller such that the patient perceives the target to be moving awayfrom the patient. A pupil camera may measure eye position that can be correlatedwith the position of the target on the display to determine that the patient hasmaintained fixation on the moving target. A visible measurement light beam maybe pulsed subsequent to and/or during motion of the target that relaxes accommodationof the eye so as to avoid visual interference of the measurement light beam withthe target on the display.
