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Glasses highlight blood ()
Filtered glasses highlight blood vessels
under the skin
By Liat Clark (/search/author/Liat+Clark)
20 June 12 (Wed, 20 Jun 2012 10:43:00 +01:00)
Related features
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An Idaho-based lab has developed eyewear
(http://www.wired.co.uk/news/archive/2012-04/12/glasses-withLeave a
integrated-displays) that exaggerates the sight of blood under the
comment
skin.
(#CommentList)
2AI Labs (http://2ai.org/) has designed and manufactured the
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glasses -- of which there are three types -- for commercial use in hospitals.
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certain ones through," Mark Changizi
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The lab has already received its first shipment and predicts the product will be
in use by summer 2012.
"The [different] glasses filter out parts of bands of wavelengths, or allow
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(http://www.wired.co.uk/search/author/Mark+Changizi), director of human
cognition at the lab, explained to Wired.co.uk. "By filtering out certain things, it
allows the signal you want to come through."
The filters, he says, have been in development for years, but using them in this
way has never before been considered, Changizi says, because of our limited
understanding of why we see colour.
"In 2006 I wrote an article (http://changizi.com/colorface.pdf) that argued for
the first time that colour vision in primates was not just for seeing fruits in the
their visual field are organised in a such a way that we are able to see things
(/news/archive/2012-06/26/mass-effect-3-extendedcut-dlc-release)
In direct response to considerable criticism from
like haemoglobin under the skin. This formation of cones, which allows is to
fans regarding the story conclusion of sci-fi role-
perceive colour signals, is so specific and unique that it stands to reason,
playing game Mass Effect 3, its developer BioWare
according to Changizi, that we have colour vision in order to recognise changes
has released a supplemental ending to the game »
in the appearance of other primates.
(/news/archive/2012-06/26/mass-effect-3-
forests," says Changizi. He explains that the extra cones some primates have in
extended-cut-dlc-release)
The first filter, the so-called "vein-finder" blocks out the signals perceived when
we see oxygenated blood. "If you were to squeeze your hand and then let go,
you will see yellow skin and veins that are relatively bluer -- that signal
becomes much more amplified and, through the glasses, your hand just looks
like a bloody bag." The vein-finder, he says, would be useful in drawing blood
and delivering drugs intravenously.
The "haemo-finder", or "haemoglobin-concentration-isolator", exaggerates our
perception of blood pooling and "modulations in haemoglobin concentration
generally," says Changizi. Don the glasses, and the haemoglobin-rich blood
under the skin will appear dark and vivid.
Changizi told Wired.co.uk how his excitable five-year-old, when wearing the
glasses, took to slapping his own thigh as many times as he could to watch the
dark pools forming under the skin when blood rushed to the area being
stimulated. "He just stared at the tree of veins going down his chest -- you will
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see blood vessels you've never really noticed before."
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The third filter is the "oxygenation-amplifier" which will only enhance the visual
perception of oxygenated blood and should be helpful in general medicine,
visual examination and diagnosis: "The colour or pallor of the skin has been
part of the symptomatology of disease for millennia, and still is to this day.
Colourblind doctors have noted their handicaps for centuries."
It is this third technology that Changizi is looking to develop for everyday wear.
He and the 2AI Labs are in talks with major eyewear manufacturers to develop
a design good enough to wear everyday, with a lens technology
(http://www.wired.co.uk/news/archive/2009-11/11/contact-lenses-that-reactto-the-sun) that will "enhance people's emotions and moods" -- bad luck for
those that blush uncontrollably.
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(/magazine/archive/2012/07/fetish/fishi
for-the-future)
27 June 2012
Changizi hopes it will be on sale by 2013, and, according to his blog
(http://changizi.wordpress.com/2012/06/18/o2amps-by-2ai/), it could have
even more uses, including security, sports, poker, and dating.
The medical glasses, on the other hand, are already on pre-order from
surgeons, emergency medical services, family doctors and nurses. Having
received its first shipment in June, 2AI Labs is in the process of getting the
product out to medical distributors.
Like
27
4
Story
Written by Liat Clark
(/search/author/Liat+Clark)
Edited by Olivia Solon
Tags
Mark Changizi
(/tags/Mark+Changizi),
2AI Labs
(/tags/2AI+Labs),
Idaho (/tags/Idaho),
Sunglasses
(/tags/Sunglasses),
Eyewear
(/tags/Eyewear), Blood
(/tags/Blood),
Haemoglobin
(/tags/Haemoglobin),
Vision (/tags/Vision)
Comments
(/magazine/archive/2012/07/fetish/fishing-for-thefuture)
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Comment
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