who discovered color blindness in patients,and what causes color blindness?

Question

is color blindness cureable? Is there a such thing as what race has the most color blindness cases? please help with these questions if you know the answers, these questions are for my daughters school progect.you can email it to me at [e-mail]

Answer 1

* Color blindness (color vision deficiency) is a condition in which certain colors cannot be distinguished, and is most commonly due to an inherited condition. Red/Green color blindness is by far the most common form, about 99%, and causes problems in distinguishing reds and greens. Another color deficiency Blue/Yellow also exists, but is rare and there is no commonly available test for it.
* Depending on just which figures you believe, color blindness seems to occur in about 8% - 12% of males of European origin and about one-half of 1% of females. I did not find any figures for frequency in other races. Total color blindness (seeing in only shades of gray) is extremely rare.
* There is no treatment for color blindness, nor is it usually the cause of any significant disability. However, it can be very frustrating for individuals affected by it. Those who are not color blind seem to have the misconception that color blindness means that a color blind person sees only in black and white or shades of gray. While this sort of condition is possible, it is extremely rare. Being color blind does keep one from performing certain jobs and makes others difficult.

The human eye sees by light stimulating the retina (a neuro-membrane lining the inside back of the eye). The retina is made up of what are called Rods and Cones. The rods, located in the peripheral retina, give us our night vision, but can not distinguish color. Cones, located in the center of the retina (called the macula), are not much good at night but do let us perceive color during daylight. Colour blindness is an inherited disease

Answer 2

I will answer what I can, and ignore the rest.

Colour blindness is caused by one or more genetic defects i.e. non-standard DNA, which is mutated or has some other fault. Mutations are caused by heat (any heat), ionizing radiation and certain chemicals.

At present colour blindness is probably incurable, and some of the ideas for treatment could be a bit dodgy e.g. infect the patient with a specilly treated virus to try and import a functioning gene.

I sometimes wonder if some temporary could be given to someone by using coloured glasses. This might be used by a lab worker. If it worked, it would be very specific to the colour changes which the person needs to perceive.

Sometimes, other reagents could be used in a laboratory to produce different changes.

Alternatively, non-colorimetric analysis methiods might be used.

Answer 3

Not sure who discovered it sorry - but I've just done a 2nd year genetics paper at uni! We learnt that the gene for red/green colour blindness is located on the X-chromosome - hence the reason why a lot more males suffer from colour-blindness than females: females have 2 X-chromosomes, and red/green colour blindness is recessive (where you have just 1 good, working copy of the gene, you don't express the colour blindness - 1 good copy is enough!).

So as human females have 2 copies of the X-chromosome, 1 from each parent, if the have a mutant form of the gene from one parent (this mutation is what results in a non-functioning product, causing colour blindness) they're still fine as they've got a good copy from the other! They would thus need to get a colour blindness gene from BOTH parents in order to show red/green colour blindness... Guys, on the other hand, what with only one X chromosome and one Y - if they've got the colour blindness gene on their X-chromosome, they don't have another one to make up for it - so they're red/green colour blind! (I think red/green must be the most common form - as 2 of my friends (both male..) have it - don't know about any other forms sorry!

Answer 4

All I know is that it is passed in the genes of a family.
My father had it and then his grandson also got it.