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Paper on diffraction through the lens of the human eye: http://goo.gl/XEdMVd
"Shape of stars and optical quality of the human eye" by Rafael Navarro and M. Angeles Losada, Vol. 14, No. 2/February 1997/J. Opt. Soc. Am. A

Eye Photos courtesy of:
Anthony Kelly
Elliot Bennett
flickr user jyotsna210
flickr user martinak15
wikimedia user Hminden
Magdalena Roeseler
Michael Gäbler
wikimedia user Woodwalker
Steve Jurvetson
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Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute!

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