New 'Olo' Color Unveils Retinal Breakthrough Set to Transform Vision Science

Scientists claim to have discovered a color that no one has seen before. Interestingly, this shade can only be achieved through laser manipulation of the retina. The five people who have seen it described it as blue-green. However, they argue that this description does not fully capture the richness of the experience.

What do you need to know?

New color : Scientists from the U.S. have discovered a color that can only be perceived through laser manipulation of the retina.
Research method : The experiment involved using laser pulses to stimulate retinal cells, pushing the boundaries of visual perception.
Potential applications : A tool named "Oz Vision" could further research on color blindness and vision-affecting diseases, such as retinitis pigmentosa.

According to "The Guardian," a A scientific team asserts they have encountered a color previously unseen by anyone. .

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This daring and contentious assertion stems from an experiment where U.S. researchers employed laser pulses to activate single retinal cells. As a result, they expanded the boundaries of perception beyond its natural limits.

Explaining the color isn't easy. Those who observed it provided descriptions that vary widely, with five individuals portraying it as blue-green However, based on scientific findings, This description fails to entirely capture the depth of the experience. .

" It was astonishing. It’s extremely rich in content. " according to Ren Ng, an electrical engineer from the University of California at Berkeley.

Scientists have shared a picture of a turquoise square to give an idea of the color they have named "olo." However, they stressed that achieving this coloration can only be done via laser alteration of the retina.

Austin Roorda, a vision scientist, noted that it is not possible to represent this color via a description in an article or on a monitor. The color we see is merely a version of it, but it pales in comparison to the "olo" experience.

Why and how do we see colors?

People perceive colors when light hits the color-sensitive cells called cones in the retina. There are three types of cones that respond to different wavelengths of light: long (L), medium (M), and short (S).

Natural light consists of various wavelengths that activate the L, M, and S cones differently. The red part of the spectrum predominantly excites the L cones, whereas blue light chiefly triggers the S cones. In contrast, M cones fall somewhere in between; however, there isn’t any natural light that solely stimulates these medium-wavelength receptors.

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The team from Berkeley decided to overcome this limitation. They started by mapping a small portion of the human retina to determine the location of its M cones. Then, a laser scanned the retina, emitting a slight light pulse to stimulate a cell before moving to the next cone.

The result, published in Science Advances, is a patch of color in the field of view about twice the size of a full moon.

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The importance of this finding. Are we going to witness a new hue?

Researchers think that the device called "Oz Vision" will aid in investigating basic scientific inquiries about How the brain generates our visual experience of reality. Furthermore, it could also be utilized for researching conditions like color blindness or vision disorders such as retinitis pigmentosa.

Will the remainder of the world ever encounter "olo"? Ren Ng explained that this is basic science, and unfortunately, we will not see "olo" on any smartphone display or TV anytime soon. For now, our only possession is imagination.

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