Judged: two independent readers; copy check clear.
binocular cue
binocular cue A binocular cue is visual information available only when both eyes are used together.
A binocular cue is visual information available only when both eyes are used together. In this packet, it refers to retinal disparity—the difference between the two eyes’ views—which signals whether something appears to come forward or recede in depth and helps guide binocular eye coordination.