What are the different types of color blindness?
Q. Both my nephews are color blind but im not sure which kind. I kinda remember that there are 2 types. What is color blindness like?
Asked by Amanda - Tue Jan 23 10:05:30 2007 - - 3 Answers - 0 Comments

A. This site is pretty cool...It has a lot of information as well as a couple of images of how a person with different types of color blindness actually see something.
Answered by hcbiochem - Tue Jan 23 10:16:39 2007

Why is the Color-Blindness gene more common then the Hemophilia A gene in females?
Q. Hemophilia A, another sex linked disorder, is very rare in females, yet color blindness is fairly common. Explain why the Color-Blindness gene is more common. - This is the only question i have been having problems with, i'd greatly appreciate any help! Thanks, Brandon.
Asked by Brandon M - Sun May 10 13:29:23 2009 - - 1 Answers - 0 Comments

A. Hemophilia will kill you, colorblindness won't. Mutations arise at the same rate in the two genes, but natural selection only eliminates the hemophiliacs from the population, not the colorblind.
Answered by Pseudo Obscure - Sun May 10 13:48:38 2009

How often do woman get red green color blindness?
Q. I doing a report and i can't find out how often woman get red green color blindness. Does anyone know? please help!
Asked by Miscellaneous - Tue Apr 22 16:13:08 2008 - - 2 Answers - 0 Comments

A. women get it really rarely it depends on the genes of the parents. since red green color blindness is an allele on the sex chromosome X, men have a higher chance of getting color blindness than women because females are XX and males are XY and since they have 2 X's it is harder for them to get red green color blindness. If they get one X which has a color blindness allele then they become carriers while if men get one color blindness allele we become red green color blind. for a female to have RGCB (red green color blindness) the father has to be RGCB and the mother has to be RGCB carrier or a RGCB. for men to get RGCB the female just has to be a carrier or a RGCB. hope that helps good luck
Answered by Mugen - Tue Apr 22 16:17:04 2008

Can playing with small electronics cause eye damage or blindness?
Q. So I was playing with my nintendo DS in my room, in the dark, and then my dad yells at me and says that if I keep doing this, I will become blind. I thought that this was BS. It could cause some fatigue, but I don't really think it can cause blindness.
Asked by Paul - Sun Jun 21 01:46:40 2009 - - 3 Answers - 0 Comments

A. It can cause it stressed and eye fatigue. But making it to be blind is not true.
Answered by Brainiac - Sun Jun 21 03:30:19 2009

Can I enlist in the Airforce with astigmatism and color blindness?
Q. I was just wondering if it were possible? With my color blindness, I can see all the various colors except the various hues of blues, greens, yellows, and reds are hard to distinguish. Differentiating pastel colors aren't my strong spot LOL.
Asked by Brandon - Thu Aug 28 10:01:06 2008 - - 4 Answers - 0 Comments

A. Depends on the degree, most people are astigmatic to some extent, and in the American Air force it is possible to be colour blind and also on flight duty, the reason for this is because in America, there is a soft lense, that can be worn, over the less dominant eye that allows a person to see colours, it is known as the "x-chrom" lens, and was invented by the late Dr Harry Zeltzman, it first appeared on the "Tomorrows World" program, on the BBC, and I was the first person to have this fitted in England ! I rang the BBC during this part of the program, and ordered it before the item was over, it was sent at great expense, ( it still costs about the same as it did 34 years ago, despite now being available in many different forms,and a soft… [cont.]
Answered by A T - Thu Aug 28 10:39:40 2008

Who cured blindness in wolves that live in captivity?
Q. My potential employer told me that one of her relatives discovered the cure for blindness in wolves that live in captivity. It was something about there being a missing mineral in their water? Does anyone know who this was?
Asked by DogLover77726 - Thu Aug 23 18:24:27 2007 - - 2 Answers - 0 Comments

A. The only blindness I have encountered concerning wolves is Progressive Retinal Atrophy. PRA is a group of inherited diseases that damage the cells that capture light in the wolves's retina. As a result, the affected wolf slowly goes blind. Because the disease is genetic, it is passed on by the parents. In some cases, both parents must carry the defective gene, while in other cases, one affected parent can pass on the trait. The disease is difficult to control through breeding because clinical signs of PRA usually don't emerge until later in life, after the wolf has already passed on the bad gene. For this reason, the prevalence of PRA is on the rise. To stop its spread, Dr. Aguirre and his collaborator, Dr. Greg Acland, have already… [cont.]
Answered by C.M.B. - Thu Aug 23 21:00:44 2007

I love the book Blindness by Saramago. Any other similar book recommendations for me?
Q. I love books like Blindness by Saramago. I like dark, twisted, messed up, totally unique, fast reads that get you thinking like that. What would another GREAT read along those lines be? I'm looking for a good recommendation! Thanks!
Asked by KristenCO - Mon May 26 18:02:53 2008 - - 1 Answers - 0 Comments

A. I liked Blindness also--but it didn't make me want to read anything else by Saramago. Two authors come to mind as recommendations: Thomas Bernhard, an Austrian writer, very dark indeed, but something a chore to read. Try 'Correction', if your interested. The other is Patricia Highsmith. The first book I read of hers was called 'A Dog's Ransom', but the series of books she did about Ripley are probably better to start with.
Answered by jimbeau - Mon May 26 18:26:17 2008

Can men pass the the color blindness trait to their children?
Q. My friend and I have an argument on our hands and none of our old college text books. We are trying to figure out if a man can pass the color blindness trait onto their children, or if only women are carriers of the trait. Please let me know and perhaps provide where you got your information. Thanks in advance!
Asked by Miss Madison - Sat Dec 27 18:14:04 2008 - - 5 Answers - 0 Comments

A. LOL. Semantics, semantics. The man can pass his bad allele on to his girl children. Whether or not the girl actually has the trait depends on mom: If mom is normal, girl will be a carrier. If mom is carrier, girl may be carrier or girl may have trait (50-50). If mom is colorblind, girl will be colorblind. The man cannot pass his bad allele on to his boy children.
Answered by emucompboy - Sat Dec 27 18:40:08 2008

If you were to suffer from any one of four psychological cases involving blindness and sight, or phantom limbs?
Q. If you were to suffer from any one of four psychological cases involving blindness and sight, or phantom limbs and pain, what would you do?
Asked by nguyen n - Thu Oct 9 03:45:00 2008 - - 1 Answers - 0 Comments

A. i would hate to not see but you cant let that stop you got to keep living
Answered by SeanBetter - Thu Oct 9 04:16:18 2008

is there any way to treat Colour Blindness and does it deteriorate?
Q. is there anyway we can overcome colur blindness and does it deteriorate with time?
Asked by kafu - Sat Feb 17 12:42:38 2007 - - 2 Answers - 0 Comments

A. No--it is a genetic thing that you are born with. And no, it does not get worse over time! It just means that some colors look the same to that person. It can be mild or severe, and there are different types.
Answered by cope_acetic - Sat Feb 17 12:51:20 2007

How does professionally dying/coloring your eyebrows cause blindness? Is it just the risk of it gettingineye?
Q. OR do the chemicals on your eyebrows have a risk themselves of creating blindness or other eye problems? I keep reading eveywhere that it's illegal and harmful, but how so? Other than it accidentally dripping in your eyes?
Asked by FoxyLAStar - Wed Apr 19 02:52:48 2006 - - 4 Answers - 0 Comments

A. Chemicals in hair dyes (this could include the eyebrow dyes) contain the compund phenylenediamine. This compound can be extremely irritating, and even cause blindness if applied into the eyes. Also, Aniline dyes are liquid chemicals that are derived from coal tar and are used in commercial semi-permanent hair dyes. Historically these dyes have also been proven to cause blindness in some cases when used in the eye areas. Hope it help solve your problem.
Answered by ye2 - Wed Apr 19 03:23:32 2006

How does physics relate to colour vision and colour blindness???
Q. What is colour vision and colour blindness and how do they relate to physics through sight and light???
Asked by Craig S - Wed Mar 12 02:37:07 2008 - - 4 Answers - 0 Comments

A. Well, for starters, physics explains how the physical characteristics of the eye work to focus light on the retina. The lens and the way that it bends light are described by physics. The way that the eye absorbs light is also physics, and the different properties of different wavelengths of light are what allow specific parts of the eye to distinguish different colors. A lack of one part of the eye that distinguishes, for example, red, means that the person cannot tell red from other colors. What other color lights up depends on what receptor is closest to red. In this case, the green receptors are able to pick up on red light, so red and green show up as the same color to someone who has this form of color blindness. The actual… [cont.]
Answered by aestatisa - Wed Mar 12 02:51:02 2008

a woman with color blindness marries a man with normal vision and gives birth to two daughters?
Q. the two daughters also marry men with normal vision then what is the percentage possibility of color blindness in the woman's grandchildren?
Asked by Mannan - Sat Oct 31 09:05:53 2009 - - 3 Answers - 0 Comments

A. The previous answer is wrong. Let's revisit the genetics. The woman with color blindness, a sex-linked trait, must have both of her X chromosomes with the defective allele since it is a recessive trait. That means that each of her daughters would have one of her X chromosomes, and both daughters would be carriers for the trait. All of her sons with her normal husband, getting their X chromosome from her, would be color-blind. So... next generation. All the daughters (granddaughters) would not be color blind as their normal father would give them a normal X chromosome. However, since there is a 50% probability that the granddaughters would get a defective X chromosome from their mother, then 50% would be carriers. For the grandsons.. [cont.]
Answered by DrJ - Sat Oct 31 11:16:15 2009

Is color blindness a gene disorder or a chromosomal disorder?
Q. I'm going a project in my biology class and I need to know if color blindness if a gene disorder or if it's a chromosomal disorder. If you use a site for a reference please add it to your answer! :D Thanks for any answers.
Asked by lovefrombrittany - Wed Feb 18 21:46:15 2009 - - 1 Answers - 0 Comments

A. it's a genetic disorder that only males get b/c it is carried on the y-chromosome. just search color blindness and you will get tons up stuff.
Answered by Brittany - Wed Feb 18 22:10:42 2009

What things can cause temporary blindness or considereble sight impairment?
Q. I am doing a speech for my class and i need a few leads on the situations or conditions that can cause temporary blindness or the like. Does dilating the pupils cause temporary blindness or simply make things bright, i'd love for some answers and i'd be much obliged.
Asked by tinman2022 - Sat Dec 9 15:54:16 2006 - - 4 Answers - 0 Comments

A. Probably any type of injury to the eyes themselves that can be reversed with healing . Retinal detachment can be temporary if the ophthalmologist can repair it in time. I thought the following links described interesting conditions, the first causing temp. blindness by blistering after exposure to this particular plant. And the second being another impairment of the retina, but only during a certain time of day. Neat question!
Answered by reeses30135 - Sat Dec 9 16:14:12 2006

Can my horse barrel race with moon blindness?
Q. My 9 year old paint gelding has moon blindness (Uveitis). I would like to start him on barrels and poles. Will his eye effect him any? and does anyone know a way to cure it?
Asked by Country*Gurl - Mon Mar 23 10:25:26 2009 - - 1 Answers - 0 Comments

A. Unfortunately, moon blindness is not cureable (as of yet anyhow), but it should not affect your horse's performance in barrels or poles as long as you have very good leg, seat and hand communication with him already. Though the barrels and poles may not be particularly visible to him, your cues should be enough to get him around them without problem, if you develop them enough. :) There have actually been many many successful show, barrel, etc. horses who were completely blind. So as long as you continue to develop your communication and cues, you will be fine.
Answered by Emily - Mon Mar 23 17:01:32 2009

What could cause blindness in a wild animal?
Q. I am creating a character for an RPG, and he is blind. However, there are no humans, so it couldn't be anything caused by them. If it helps at all, he is a leopard. Also, it would need to be something that could happen at a young age. I do not want him to have been born blind, I want something to have happened. Thanks!
Asked by tpontow - Sun Jun 21 02:27:32 2009 - - 6 Answers - 0 Comments

A. He could have been sprayed by some animal in the eyes. I know that spitting cobra venom causes blindness. Also, he could form some disease, maybe cateracts or something, but I'm not sure how it is caused. Also, another animal could have injured it. I know that many animals are injured by each other for territory. Or male lions ofter try to kill the young of other male lions, to prevent future opponents.
Answered by katie kat - Sun Jun 21 03:05:31 2009

How to cure blindness having chopped a chilli and rubbed my eye?
Q. The onion made me cry and I forgot I'd chopped the chilli before doing the onion. Rubbed my eyes and WOWwww. Can't see the kitchen now let alone the veggies running around it. What do I do.
Asked by Les - Mon Jan 28 06:46:30 2008 - - 17 Answers - 1 Comments

A. Water bath is your only bet, alas. Get a glass, fill it to the brim and lower your eye into it (they make nifty little water baths for your eye that are scooped so you can really get in there, but a glass will do the trick). Keep refilling to freshen and cool the water, as the heat from your eye will warm it up.
Answered by flyingdog - Mon Jan 28 06:53:38 2008

Do you know information about Color blindness?
Q. I am interested in learning about color blindness. I would like to know anything about it, in particular the genetics to do with it. If you have any good websites you can direct me to that'll be good as well! Tell me anything and everything because I think it a really interesting topic. Anna, ;D
Asked by Anna D - Wed Mar 19 19:28:37 2008 - - 6 Answers - 0 Comments

A. colour blindness such as red or green blindness is a sex linked condition so mainly males have it as it is carried on one of the x chromosomes. (Very rare do women suffer the condition). I believe the gene fragments encoding red visual pigment and green visual pigment are different (and on different genes), and there are more repeats of the gene for green visual pigment than red in the genome. Try: and :)
Answered by sr80 - Fri Mar 21 17:58:52 2008

What is the concept of blindness to a blind person?
Q. I've been wondering about this for some time. I am quite aware that those who are blind see nothing at all, and those who are born blind don't even understand the concept of sight most of the time. However, if someone were to somehow lose their eyes or eyesight (accident, illness, etc.), what would their missing sense of sight detect? Would they "see" just pure black darkness, similar to when people close their eyes? Or would they simply just not be able to identify that sense, such as two people trying to telepathically communicate with each other? Or is there another answer altogether?
Asked by PEG - Fri Aug 28 20:29:26 2009 - - 2 Answers - 0 Comments

A. Interesting question. I think that people that have had vision, and then lose visual apparatus outside of the brain, will "see black". However, there is a different form of blindness called cortical blindness. This is when the part of the brain that receives the visual signal is damaged. Not only can these people not see, but they are unaware they cannot see ie they don't panic and shout "Hey I've gone blind! Help!". They stare out like they are trying to see; they will look towards people talking to them. It is only when you ask them directly if they can see something, they will say "I don't know".
Answered by how's this? - Sat Aug 29 03:40:13 2009