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Blindness

Blindness is vision loss or vision impairment. Some diseases that cause blindness are cataracts, glaucoma, diabetic retinopathy, childhood blindness, macular degeneration, onchocerciasis and trachoma.

471 Questions

How would you describe color to a blind man who has been blind from birth?

You can't literally. You can't really explain what anything literally looks like to a blind person. They have no seeable conception of up and down, left and right, white and black, road and side-walk, long and short, etc.

Notice how I said literally. They can still hear and feel and smell. For the example of a road. You can make them feel water, and smell it, and even taste it. You can tell them from those what water is. You can also make them feel the concrete powder and the texture, make them smell it, and I recommend not making them taste it. You tell them you mix rocks, water, and concrete powder together to get a road. You make them feel the road, listen to what happens on the road, and guide them the length of the road. This will show them a rough seeable idea of the road.

The same thing can be said for color. Give the color a smell, something to feel, or even a taste, and describe it from that to them.

Another difficult way of doing it is telling them that they see nothing. They see the color black, and tell them to go lighter from this point of darkness to describe color becoming lighter.

( it is just a matter of concept ) for a blind man to describe and recognize and store some info in his memory, he would use his other senses like touch, taste, smelling and hearing

Why does liver cure night blindness?

There is a possibility of curing night blindness with fish liver oil. This is mainly due to the fact that fish liver oil is rich in vitamin A.

How can people recover from blindness?

yes some types of blindness can be recovered.

it depends on what type of blindness it is.

How do blind people clean themselves?

Sniff sniff or a friend... although it will probably still smell some when they have wiped sufficiently

Can a person become blind with a hit in the head?

Yes. If you damage the optical part of the brain, it is possible to go blind, even if the eyes are perfectly healthy.

Think of it this way, you could have a good webcam plugged into your PC, but if the PC is damaged (such as if the USB controller is bad), it might not be able to get the image. So even if the camera is good, it won't be of no use if it is attached to a damaged computer that cannot make use of it. Thus it is with vision. You can have healthy eyes but have brain damage that makes the brain unable to make use of what the eyes are sending to it.

What happens if you get punched between the eyes?

You could die.

If the attacker hits hard enough, that spot in your nose, called the "bridge", will break. The cartilage gets forced into the brain.

Where was St. Lucy born?

Because it was so long ago that Saint Lucy lived there are no recodes of when she was born. We think she may have lived during the time period of 283 AD

What is type of arthritis you can get in your head and can cause blindness?

Temporal arthritis, This disorder may exist alone or at the same time as or following polymyalgia rheumatica. This disorder characterized by the sudden development of pain and stiffness in the pelvis and shoulder muscles. About 25% of those with giant cell arthritis experience polymyalgia rheumatica as well For more information on this illness Go to the related link (temporal arthritis) in the related link below

the inflammation that is a part of Rheumatoid arthritis can have a degenerative effect on the blood vessels of the brain leading to serious consequences,It can also have simar effect on the eyes as well as rheumatoid nodules in some cases.

When you are blind from you left eye can you still get your driver license?

Yes, but depending on yoru state, you may be subject to some special requirements such as having an extra mirror or similar.

Is color blindness a sex linked disease?

Yes. A person is color blind if all his or her X chromosomes have the defective gene. A man have one X chromosome, and a woman has two. Thus:

If only the father is color blind

- The probability that the son is color blind is 0%

- The probability that the daughter is color blind is 0%

- The probability that the daughter is a bearer of the defective gene is 100%

If the mother is a bearer of the defective gene, but is not color blind, and the father is not color blind

- The probability that the son is color blind is 50%

- The probability that the daughter is color blind is 0%

- The probability that the daughter is a bearer of the defective gene is 50%

If the mother is a bearer of the defective gene but not color blind, and the father is color blind

- The probability that the son is color blind is 50%

- The probability that the daughter is color blind is 50%

- The probability that the daughter is a bearer of the defective gene is 100%

If the mother is color blind and the father is not

- The probability that the son is color blind is 100%

- The probability that the daughter is color blind is 0%

- The probability that the daughter is a bearer of the defective gene is 100%

If both parents are color blind

- The probability that the child, regardless of gender, is color blind is 100%

What are the blind predators?

Predator Blind makes you virtually invisible to waterfowl. You can use it on dry land, in muddy conditions, or in the water to give you a secure place to take aim at approaching birds. The Blind is made of tough, durable 100% polyethylene virtually indestructible body.

What do eye colors look like?

just look at some peoples eyes, you'll find out :)

Critical analysis of the on his blind ness?

There are many people who will do a critical analysis of blindness in male. One could say that it is genetic for example.

How many people suffer from blindness every century?

It is estimated that around 36 million people are blind worldwide, with the majority living in developing countries. Advances in medical treatments and technologies are helping to reduce the number of people affected by blindness every century.

What is color vision?

That part of the vision that is perceived by the cones of the eye. Rods detect black and white.

How does a blind man know when he is done wiping his butt?

He knows, It takes a bit of effort, but he ends up being pretty sure. If you need to look to be certain, then you're worse off than he is.

Does anyone know the blind monk and sect leader Idji Xuan?

If you're talking about this french guru af Algrange and his sect - what is definetely a CULT not a sect - I know him. When you further dream about living and working in a community that is organized like Kim's Northern Korea or the scientology church... you should lose no time and go right on to become a member of Idji Xuan's cult. they take all your money and let you work as a slave.

What causes degos disease?

Hello,

I see you are asking "What are the causes for degos syndrome?"

Many theories have been proposed as to what is the underlying cause of Degos disease. Three main theories include (1) viral infection, (2) defects in the body's blood clotting ability (primary disorder of coagulation), and (3) autoimmunity, whereby the body's immune system mistakenly attacks healthy tissue.

For more information, you can visit this URL - skincarehealthcenter. com/condition/degos-syndrome/c/9444#89294