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girl with blue eyes
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Girl With Blue Eyes

Saccades are quick, simultaneous movements of both eyes in the same direction controlled by the frontal lobe of the brain. Some irregular drifts, movements, smaller than a saccade and larger than a microsaccade, subtend up to six minutes of arc.
• Microsaccades
Even when looking intently at a single spot, the eyes drift around. This ensures that individual photosensitive cells are continually stimulated in different degrees. Without changing input, these cells would otherwise stop generating output. Microsaccades move the eye no more than a total of 0.2° in adult humans.

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Filename:408192.jpg
Album name:People & Humanity
Rating (1 votes):55555
Keywords:#girl #blue #eyes
Filesize:35 KiB
Date added:Aug 25, 2011
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