Figure 6. Representative record from P1 comparing the effects of monocular viewing with either eye.

A: Viewing with the eye with better visual acuity (see cartoon at bottom). B: Viewing with the eye with poorer visual acuity (see cartoon at top). During fixation with the good, right eye (A), drifts are evident in the covered left eye, especially vertically. When the bad eye attempts to fixate the small visual target (B), gaze becomes more stable for that eye, but the good eye under cover shows increased drifts.