Demonstration of Binocular Disparity

Application of Binocular Disparity in 3-D Movies

An artist creates a stereoscopic image by taking two photographs of a flowerpot from slightly different horizontal positions, simulating the view from a person's left and right eyes. When a viewer looks at the left photograph with only their left eye and the right photograph with only their right eye, they perceive a single image with a strong sense of three-dimensional depth. Which statement best analyzes the fundamental principle behind this perceptual phenomenon?

An individual with normal vision in both eyes is attempting to thread a needle. They find the task significantly more difficult when they close one eye. Which of the following statements best explains why this occurs?