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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

Can cirrhosis cause blindness?

Once a person develops the visual condition called sclera, then alcohol can lead to blindness. This is not very common. However, some people with life long alcohol addictions do develop this disease.

What would cause a toilet to continuously keep filling the bowl?

Which part, the tank or the bowl? If it's the tank, you have a problem with a restriction between the tank and the bowl. If it's the bowl, you have an obstruction in either the neck of the toilet or the drain pipe below the toilet.

How do you define color to a blind person?

If it was someone who had previously had sight, easy.

If it was someone born blind, you could word it like this, "Imagine the thing that you are feeling in front of you absorbs certain kinds of light, - you've probably noticed light if you were in a bright place and the darkness you see lessens - if it absorbs all kinds of light, it appears blank, if it doesnt, it appears as darkness, of which you probably see. depending on the kinds of light it absorbs, it can become more or less blank without being only blank and black. It could seem like it is getting bigger, and having less detail, this is when it gets fuzzy." Like it?

How do you teach blind people color?

It may be impossible to teach them what the experience of color is like. You can however teach them about the science behind color. It is different wavelengths of electromagnetic radiation. You can also explain it by analogy. The blind can recognize textures. Color is sort of the same in that is a property of surfaces that we can experience.

Who invented a way for visually impaired people to read?

Louis Braille, a French citizen.

"In 1821 a soldier named Charles Barbier came to visit the school. He bought with him a system he had invented called 'night writing'. Barbier had designed it for Napoleon; who wanted a secret code that could be used at night. It proved to be too complex for soldiers to learn and was rejected by the army. Louis Braille realized how useful this system of raised dots could be for the Blind. He set to work simplifying it. His system used six dots instead of the 12 used in Barbier's code. Now Blind people could learn to read as well as write."

Beginning in 1984 a new reading and writing language for the blind and those of low vision was developed in the U.S., utilizing modified special bar codes, John B. McAdams a Florida resident invented and patented BarAille and formed BarAille Communications. This technology is currently being heavily explored for implementation into American publications. BarAille also offers complete and instantaneous, reading, writing and translating in all common languages.

What accidents cause blindness?

if you stick a pin in ur eye u could be blind xx

Can you operate on bleeding eyes?

The eye is covered by a protective layer known as the sclera. To be able to "bleed through" your eyes you would have to puncture this layer.

It is highly unlikely for this to be possible; if however you were to puncture your sclera you have much bigger problems than some blood appearing.

However, the disease Ebola can cause bleeding from the eyes, that being a symptom of the disease.

Which vitamin deficiency causes night blindness?

Night blindness, also known as nyctalopia, is a difficulty or inability to see in low light. This can be caused by a Vitamin A deficiency.

Which is better deaf or blindness?

It's subjective of course, some people would prefer hearing and others would prefer seeing.

Helen Keller who suffered from both conditions said that being deaf was more of a hindrance than being blind.

How can you describe a mountain to a blind person?

Answer

A variation of colors ranging from one shade of color, to another


(Go straight to the point when answering this kind of question, just like the answer below)
You cant describe nor explain to a person, WITH BOTH EYES BLIND, what is a rainbow. However, if that person has only a SINGLE EYE which is BLIND, YES you can DESCRIBE TO HIM what is a rainbow.

What would cause one eye to twitch and the other to feel like there is pressure behind it?

By "pressure behind an eye," I'm going to assume that what is meant is pressure inside the eye. Eye pressure (intraocular pressure) is controlled by a watery fluid called aqueous humour, which fills the front part of the eye. Any condition that affects the drainage or production of the eye fluids can cause an increase in eye pressure. In addition, brain disorders and hemorrhagic eye injuries can also cause elevation of eye pressures and associated pain. Any increase in ocular pressure deserves assessment by an ophthalmologist.

How would you describe denim to a blind person?

Most blind people understand the concept of color, so you can say what color the denim is. You should describe everything else that does not involve sight - how it feels, smells, sounds, and maybe even tastes!

A group of neurological disorders caused by damage to the brain?

A group of neurological disorders are usually caused by the damage to the brain. Examples of these neurological disorders are stroke, tumors, vertigo, prion diseases, and multiple sclerosis.Ê

What makes you blind?

Because of the intensity of the radiation of the sun, it can be dangerous to the eye. Were you to stare at it for a long period of time, the light could eventually burn away your retina at the back of your eye and cause perminant blindness.

How can cartaracts lead to blindness?

Cataracts are the clouding of the lenses in oneâ??s eyes. They are the leading cause of blindness globally and are very common in older people. They can be treated in a number of ways including new glasses, brighter lighting, and surgery.

In the US the leading cause of blindness in adults 55 years and older is?

Glaucoma is the leading cause of preventable blindness.

Glaucoma and ocular hypertension are leading causes of irreversible blindness and impaired vision.

Is lead bad for you?

No lead does not cause cancer but you shouldn't bite it anyway because it does cause some damage. Ink may or may not cause cancer depending on what type of ink it is. Biro pens are not harmful but handwriting ink or gel pens can mess your health.

Can blind or deaf people read or write or read book's bible's and or reading book's?

Of course blind people can write stories! You don't have to see a computer screen or a piece of paper to write. They can dictate their stories to someone, or use voice recognition software, or even write in braille and have someone translate it into regular writing.

Write an critical appearance on his blindness?

the poem on his blindness ,the poet describe that when man was not blind then he had no feelings. he was not aware of other,s people feelings. he think only for himself not for other people. but when he was being blindness then he feels of every thing of world.he feels the feelings of others people. zia khan