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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.

500 Questions

Does hydrochlorothiazide cause hyperglycemia?

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Asked by Wiki User

The connection between diuretics and hyperglycemia involves intracellular K+ levels. Intracellular K+ is involved in the secretion of a lot of hormones...including insulin. Some diuretics cause hypokalemia, (decrease in K+). This inhibits insulin secretion and can lead to hyperglycemia. It's not really a problem unless the patient is pre-diabetic. In that case, it is significant enough to push them over to diabetes. Hope this helped!

Does a pupil in a blind persons eye change?

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Asked by Wiki User

the pupil itself has the same job as a normal pupil would. It may look alittle diffrent depending on the person's condition. but otherwise no. it does not change

Can all blind people tell if a light is on?

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Asked by Wiki User

Feel around for the switch; most toggle switches are up/on and down/off.

Is it bad for your eyes to read a book while lying down?

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Asked by Wiki User

Any damage to your eyesight depends on the light you have and the distance you are holding the book, not your position in bed. The reading as far as it is calming and not an upsetting subject, is what helps to fall asleep, not the position.

What chemical can cause temporary blindness?

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Asked by Wiki User

The chemical which is most often associated with blindness is methanol, also known as wood alcohol. People sometimes drink this, mistaking it for ethanol, the alcohol that is used in alcoholic beverages. Drinking too much causes death, but if you just drink a little, it may not kill you, but will still cause blindness.

How do you care for bleeding behind the eye?

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Asked by Wiki User

Are you diabetic? You need to see an Ophthalmologist.

How many animals are color blindness?

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Asked by Wiki User

there are 1000005000 kinds of blindnesses

Are cataracts a significant cause of blindness?

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Asked by Wiki User

The World Health Organization (WHO) estimated in 1997 that cataracts are responsible for 50% of cases of blindness around the world, or 19 million people. By 2020, that figure is expected to rise to 50 million.

What are the difficulties faced by the visually handicapped people?

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Asked by Keerthana

We have a good amount of difficulties but I'll highlight a few Lack of transportation especially in small towns. If buses aren't clear with stops and numbers we're not going to get around easy, and highways aren't good for us at all. Employment: Up until recently I didn't know what I'd do for a job because we aren't really able to just go work at mdonalds like sighted people. Being a cashier or teller isn't our first option and so many employers are so SCARED to hire visually impaired people but thanks to ticket to work program things can get better and the VR services in GA are good but here in Charlotte they are terrible. We have to struggle but it's worth it. Socializing: I'm 22 so maybe people older than me don't care but I really feel like if my eyes didn't look funny I'd approach people more. People still approach me but I get nervous thinking they'll pick on me. Most of my teasing oldly came froma dults when I was younger. We work better in big cities like ATL where people are more diverse and open minded about disabilities. If you're talking or approaching a visually impaired person you know say their name then say hello or whatever so we know you're talking to us because so often we can't make out your face let alone where your eyes are looking. Housing: okay I'm thinking of moving so this one is close to me. If we don't work from home we have to make sure a bus stop or our place of employment and grocery stores are near our area. We also have to make sure it's safe due to the fact that many visually impaired people walk. Some jerk landlords try to discriminate because they think we're a liability instead of looking at our ABILITIES. Heck most visually impaired people are cleaner and quieter than sighted because we care for others and pay attention to detail.

Can measles blindness be treated?

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Asked by Wiki User

Yes, they can. While it is not common, it is possible. Helen Keller became blind and deaf after catching the measles at a very young age. However, with today's medicinal advances, the chance is very, very small.

Can cirrhosis cause blindness?

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Asked by Wiki User

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?

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Asked by Wiki User

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?

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Asked by Wiki User

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?

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Asked by Wiki User

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?

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Asked by Wiki User

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?

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Asked by Wiki User

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

Can you operate on bleeding eyes?

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Asked by Wiki User

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?

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Asked by Wiki User

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?

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Asked by Wiki User

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?

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Asked by Wiki User

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.