Color Vision Correction
Color vision correction? Is it possible?
Color blindness is a real problem for many people. Typically, color blindness affects the way in which the eye sees and deciphers reds, greens, blues, and combinations of color. Although rare, some people have color blindness so severe, they only see in gray. Cells known as photoreceptors in the retina of the eye react to certain wavelengths of light that produce these colors. The cells are groups by cones, with each responsible for the process of a specific color. Other cells called rods help with night vision while also helping with the processing of color.
When photoreceptors or cones are no longer present or when they do not respond, as they should, color vision is changed. In most cases, color blindness is inherited, most often seen in men. In fact, a recent study showed that as much as 7% of all men have some degree of color blindness. However, other factors can cause or contribute to color blindness to include diabetic retinopathy and carbon monoxide toxins. As you will see below, color blindness comes in a variety of forms:
- Monochromatism – Complete color blindness where only shades of gray are seen
- Anamolous Trichromatism – Decreased color sensitivity for one color being red, green, or blue
- Blue Cone Monochromatism or BCM – Improper function of red and green cells, causing poor day vision, as well as red and green color loss
- Dichromatism – Absence of specific cells, creating the inability to see one specific color
- Cerebral Achromatopsia – Vision loss linked to brain damage
At one time, experts thought color blindness to be incurable. However, new studies are now showing a prosthetics implanted in the brain will offer scientists and doctors a better understanding of this eye problem. What is known is the way in which the eye can see color with different colors being perceived as light interacts with an object. Then, the wavelength is what determines the specific color. The problem is that constancy of color is still not fully understood.
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The new models being used shows the way in which the brain perceives color. This model called the McCollough Effect is capable of explaining to scientists the way in which the visual system corrects and adapts to small color abnormalities so misrepresentation of color is eliminated. While color vision correction is still a thing of the future, it is looking more and more possible with ongoing study and testing.
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