When I first saw this I thought it had to be a hoax, because it reminded me of the Floral Sculpture Clinic. But this appears to be legitimate. Dutch surgeons have figured out a way to implant small decorative pieces of jewelry in people's eyes. Here's a link to the Clinic where you can get this done.
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http://www.bbc.co.uk/radio1/news/newsbeat/040408_eye.shtml
and many others.
Steve Haworth has pioneered this form of Body Modification/Art, and remains the leader in development.