The vision center

It takes about thirty minutes for eyes to optimize the night vision. But when it does it can see a single candle light from a distance of fourteen miles. This video describes such unique features of eyes. Edited by Ashraf

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Channels: Others

Tags: The vision center

Uploaded by: ( Send Message ) on 26-11-2010.

Duration: 3m 52s

Dnatube: Sciencific and Medical video site.