Color blindness often happens when you cannot distinguish between certain colors. This usually happens between greens and reds, and occasionally blues.
In the retina, there are two types of cells that detect light, are called rods and cones. They are responsible for light sensing including color discrimination and depth perception. In the retina, there are three types of cones that see color: red, green and blue. The brain will use input from these cone cells to determine our color perception. Color blindness can happen when one or more of the color cone cells are absent or not working.
People with color blindness can still see things and phenomena clearly, but their ability to perceive colors is reduced, in very rare cases of being unable to see any color.
Color blindness is usually something that you have from birth but you can also get it later in life. Change in color vision can signify a serious condition. Anyone who experiences a significant change in color perception should see an ophthalmologist for check eyes. In addition, you should have an annual eye exam to detect the disease early and treat it promptly.
American Eye Center Vietnam
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