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girl with blue eyes
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Girl With Blue Eyes

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The adjustment to close-range vision involves three processes to focus an image on the retina.
• Vergence movement
When a creature with binocular vision looks at an object, the eyes must rotate around a vertical axis so that the projection of the image is in the centre of the retina in both eyes. To look at an object closer by, the eyes rotate 'towards each other' (convergence), while for an object farther away they rotate 'away from each other' (divergence). Exaggerated convergence is called cross eyed viewing (focusing on the nose for example). When looking into the distance, or when 'staring into nothingness', the eyes neither converge nor diverge.

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Filename:408203.jpg
Album name:People & Humanity
Rating (1 votes):55555
Keywords:#girl #blue #eyes
Filesize:30 KiB
Date added:Aug 25, 2011
Dimensions:700 x 268 pixels
Displayed:97 times
URL:displayimage.php?pid=408203
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