What does convergence refer to in depth perception?

Convergence in depth perception refers to the inward angle of the eyes when focusing on an object that is close to them. When we look at something nearby, both of our eyes angle inward to maintain a single image and ensure that the object is seen clearly. This eye movement is a crucial binocular cue for perceiving depth, as our brain uses the degree to which our eyes converge to determine how far away an object is. Greater convergence indicates that an object is closer, while less convergence suggests that it is farther away. This mechanism, combined with other visual cues, helps us accurately perceive the three-dimensional world around us.