Question

as an object moves closer to our face, our two eyes may cross attempting to focus on the object. what is this called?
convergence binocular cues
retinal disparity depth perception

Explanation:

To solve this, we analyze each option:

• Convergence: It refers to the inward turning of the eyes as an object gets closer to focus on it, matching the described scenario.
• Binocular Cues: These are depth cues that rely on both eyes, but it's a broader category, not the specific term for eye crossing.
• Retinal Disparity: It's the difference in images seen by each eye for depth perception, not about eye movement.
• Depth Perception: It's the ability to perceive 3D, not the specific eye - movement term here.

Answer:

A. Convergence