© David Williams, University of RochesterThis is a diagram of an RPE cell showing how they interact with the photoreceptors of the eye, and how their health differs in the eyes of a 3-year old and an 80-year old.
A layer of "dark cells" in the retina that is responsible for maintaining the health of the light-sensing cells in our eyes has been imaged in a living retina for the first time. The ability to see this nearly invisible layer could help doctors identify the onset of many diseases of the eye long before a patient notices symptoms. The findings are reported today's issue of
Investigative Ophthalmology and Visual Science.
"Our goal is to figure out why macular degeneration, one of the most prevalent eye diseases, actually happens," says David Williams, director of the Center for Visual Science and professor in the Institute of Optics at the University of Rochester. "Macular degeneration affects one in 10 people over the age of 65, and as the average age of the U.S. population continues to increase, it is only going to get more and more common. We know these dark retinal cells are compromised by macular degeneration, and now that we can image them in the living eye, we might be able to detect the disease at a much earlier stage."
In 1997, Williams' team was the first to image individual photoreceptor cells in the living eye, using a technique called adaptive optics, which was borrowed from astronomers trying to get clearer images of stars. To image the dark cells behind the photoreceptors, however, Williams employed adaptive optics with a new method to make the dark cells glow brightly enough to be detected.
Comment: The photo and accompanying caption appear in the original article. Note how what appears to be a group of women trying frantically to get somebody's attention (possibly an aid worker handing out food?) is juxtaposed with a caption that expounds the "need to halt the human-caused degradation of Earth's natural environment."
Perhaps an implied message here is that these worthless brown women (probably Muslim, but who cares?) are an excessive burden on the planet's resources and are thus to blame for the degradation of our once pristine playground?
The author pleads that the "taboo" of population control/reduction be broken. Judging by some of the 1,500 comments this article received on the BBC's website, many read the article not with revulsion but unmitigated relief. Perhaps they subconsciously interpreted it as a nod from authority to openly express their natural inclination towards ideas that revolve around removing "useless eaters" for lebensraum.
Regardless of any sanitary spin dressed over population reduction, the brutal reality is that genocide through economic, social and military warfare is already under way.