Which word does NOT belong with the others? cornea, retina, pupil, vision

Given data

• Options: cornea, retina, pupil, vision.

Concept/Approach
Separate anatomical parts of the eye from a sensory process or ability.

Step-by-step reasoning
Cornea, retina, and pupil are physical structures of the eye.Vision is the function or process of seeing, not a structure.

Verification/Alternative
Anatomy vs. function test: only vision describes the ability rather than a body part.

Common pitfalls

• Choosing pupil due to its changing size; it remains an anatomical part.

Final Answer
vision