We
can see bright colors surrounding environment because our eyes have
color receptors called cone cells. A healthy and normal eyes have cones
that can capture the three primary pigment colors: red pigment, green
and blue.
For
those who suffer from color blindness, one of the cone cells in the eye
is not working properly, so they are not able to distinguish colors
correctly. In most cases of color blindness, damage occurs to the red or
green cone cells, causing the sufferer trouble distinguishing a variety
of colors. In addition, in some cases the cone cells will capture the
color spectrum overlap.
EnChroma,
an eye lens company founded by an American surgeon creates glasses that
are able to restore the function of the receptor cells of damaged eyes.
The glasses have filters that can capture light spectrum overlap each
other, pushing the "wedge" that makes the frequency of the light collide
with each other. By using the glasses, those with color blindness can
taste the beautiful range of colors around them through the EnChroma
lens.
 |
Right:
City of Venice seen by the normal eye. Left: City of Venice seen by
people with color blindness. Existing curve below shows the difference
spectrum are both accepted by the cone cells. (Picture from: http://bit.ly/1fD1hIV) |
However,
Jay Neitz, an ophthalmologist and professor of ophthalmology at the
University of Washington, warned that the EnChroma glasses can not cure
the color blindness. Similar to the function of glasses to help patients
with nearsightedness see better, EnChroma glasses only help people with
color blindness to see and distinguish colors.. *** [EKA | FROM VARIOUS SOURCES | TECHNOLOGY VISTA]
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