Which type of depth cues are available to each eye alone?

Monocular depth cues are available to each eye alone, making them crucial for depth perception when using only one eye. These cues include features such as relative size, interposition, linear perspective, texture gradient, and motion parallax. Each of these cues relies on the visual information that can be processed independently by each eye, allowing us to gauge depth and distance even without binocular vision.

For example, the concept of relative size indicates that objects that are smaller in our visual field are perceived as farther away compared to those that are larger. This cue can be perceived even if only one eye is open. Similarly, interposition occurs when one object overlaps another, making it clear which object is in front and which is behind, regardless of whether we are viewing with one or both eyes.

In contrast, binocular depth cues rely on the slightly different images received by both eyes and the brain's ability to integrate these images to perceive depth, which is why they do not fit the criteria of being monocular. Retinal cues focus on aspects related to the retina itself rather than the broader category of monocular cues. Converging cues, while involving both eyes, are dependent on the coordination of our eye muscles to achieve a sense of depth, again making them binocular rather