When you look at objects that are very far away your two eyes point very nearly straight ahead. As objects come closer (less than about 6 meters or so) your eyes will noticeably turn in (converge). The nearer objects are to you the more your eyes will turn towards your nose. This eye position is called convergence.
Look at a friend's eyes as you hold your finger in front of him or her and move it towards the nose. You will see the eyes converge.
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