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When they first started using colored lights as signals they discovered that some people couldn't tell them apart.

So employment physicals began to test for color blindness.

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Q: How did the railroads help everyone learn about color blindness?
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Can color blindness be treated or cured?

There is no cure for color blindness at present. There are colored lenses that can be used to help distinguish certain colors, but they are impractical for daily use. Some researchers at the University of Washington were able to cure red-green colorblindness in monkeys using gene therapy, but it will be a while until such treatments will be ready for humans.


Do you really inherit eye color from your parents?

Through the X chromosome, usually from a mother, (whom does not show any signs of colour blindness, yet she is a CARRIER of the X chromosome) passed down to son. Males usually get this because they only posses ONE X, in their XY life.


How is being color blind treated?

1 Begin by visiting an optometrist to determine the nature of the color blindness. Obtain a diagnosis of color blindness in order to be eligible for various benefits and products available to color blind individuals.2 Work with a color wheel to learn to distinguish the variations in color, according to the specific form of color blindness. Ask the optometrist if red contacts would be advisable and feasible given the specifics of the case.3 Print all materials in black and white. Learn how to distinguish or label symbols on maps according to the color deficiency in order to prevent error in reading. Label important colors on various bottles and labels to distinguish their uses.4 Organize clothing and shoes with the aid of someone who can see a full color range; it will minimize the possibility for error in color matching. Indicate the color on drawers and closet sections for ease in selecting clothing.5 Adjust the display settings of your personal computers and even television to better assist the color blind individual and maximize benefit. Inform employers, school administrators and the Department of Motor Vehicles of color blindness so provisions can be made accordingly.and that's vampirekingson101 answer hope you found the answer


How was life improved by the railroads?

What you are asking sounds like a homework question. Although it is your responsibility to learn from homework assignments, railroads allowed goods to be moved at rates faster than ever.


Where do newborns learn to cry?

Everyone is born with the ability to cry. It is not something you learn. It is a basic bodily function that (nearly) everyone can do.


What you learn from color wheel?

you learn all the colors.


Does everyone learn the same way?

No


Does everyone learn same way?

no


How do crayons help kids memorize colors?

Children are often kinesthetic learners, which means that they learn more easily by doing something. When they color, they not only learn the word for that color, but they can see and feel the color on the paper. This helps them to learn which color is which.


Does the space shuttle benefit everyone?

it benefits everyone because we can learn more about space


How can you learn from the holocause?

you can learn that everything isn't easy and everyone goes through things


What can you learn from generations gone before?

we can learn from everyone's mistakes and move forward from their success's