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  • Diagram showing how eyes converge.
    Rights: Fred Hsu GNU Free Documentation License Creative Commons Attribution ShareAlike 3.0 Published 14 March 2012 Size: 13 KB Referencing Hub media

    When your eyes look at a closer object, they angle inwards. This is called convergence. Greater amount of convergence causes eye muscles to do more work. This is a useful feedback indicator to the brain to give us a clue as to how far away an object is.

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