Convergence: As a related term, convergence refers to the inward movement of both eyes when focusing on nearby objects. This helps determine how close or far away an object is.
Stereopsis: Stereopsis is another related term that refers to the perception of depth and three-dimensionality due to retinal disparity. It occurs when slightly different images from each eye are fused together in the brain.
Binocular Disparity: Binocular disparity is directly linked to retinal disparity as it represents the difference between the images projected on each retina. The greater the binocular disparity, the closer an object appears in relation to other objects.