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Brian Go
H2E-10
Jeremiah Pua
H2E-27
Color Blindness
Table of contents
What are some facts
about colorblindness?
How do I know if I
have it?
Are there any specific
treatments for this?
What are the risks and
what is the prevalence?
What are the chances of
my child being color
blind?
Did anyone do anything to
help this people?
SOURCES
Some facts about color blindness
• Color blindness reduces the ability to distinguish
between certain shades of color.
• It is passed on through heredity
• Difficulty in differentiating shades or a color
from the same color itself from other ones.
• Being male means you are more susceptible to it.
• It is a gene mutation which means it occurs to
one specific sex than the other.
Click here for more specific details
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Specific Details
• It is a X-linked trait which means that the X
chromosome is the one that carries the trait
• Color blindness is autosomal recessive meaning it would
need to be homozygous recessive for it to occur.
• Since it is linked with the X sex chromosome it means
that men are more susceptible since men only have 1 X
gene therefore there is only a need for 1 for it to occur in
males.
• The trait affects the three cones in the eye that allow you
to see colors. They let us see red, green and blue. When
you are color blind you actually lose one of these cones.
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A more scientific approach
A
more
Scientific
Cross between a Woman carrier (X^N X^n) of the trait with a
normal male (X^N Y)
approach
X^N
X^n
X^N
X^N X^N
X^N X^n
Y
X^N Y
X^n Y
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Woman
carrier
Affected
male
Risk factors and Prevalence
Risks
• Being a male means a higher risk of getting this trait
• An eye related disease or conditions gives a higher risk
• Intaking drugs like hydroxycholorine
• Having head injuries, nerve damage and strokes
Prevalence
• Found mostly in men
• Rarely affects women
• Women are just usually carriers of the trait
• 1:10 Caucasian males suffer from this
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Symptoms and effects
• May not be able to, or have difficulty in
distinguishing different shades of red and green,
blue and yellow, or even any other color.
• Children have low tolerance for bright light and
poor vision.
• Can be diagnosed by wrongly reading the number
in the test.
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Click here to take the test
The Test
Click on one of these two
based on the number that you
see
6 9
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Click on one of these two
based on the number that you
see
12 74
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Click on one of these two
based on the number that you
see
97 37
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Click on one of these two
based on the number that you
see
85 8
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Click on one of these two
based on the number that you
see
2 39
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Click on one of these two
based on the number that you
see
35 5
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Click on one of these two
based on the number that you
see
12 74
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Click on one of these two
based on the number that you
see
97 37
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Click on one of these two
based on the number that you
see
85 8
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Click on one of these two
based on the number that you
see
2 39
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Click on one of these two
based on the number that you
see
35 5
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CONGRATULATIONS!!!!!
YOU ARE OF NO CHANCE
OF BEING COLOR
BLIND!!!!!
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URGENT WARNING!!!!!
Your are of HIGH chance of
being colorblind while
daughters would have a lowmedium chance of being
colorblind
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What are the chances of my child being color
blind?
Does your family have
any history of color
blindness?
YES
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NO
CONGRATULATIONS!!!!!
YOUR CHILD IS OF LOW
CHANCE OF BEING COLOR
BLIND!!!!!
Are there any specific
treatments for this?
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Did anyone do anything to
help this people?
Is it the maternal side,
paternal side or both that have
history of color blindness
Paternal
Maternal
BOTH
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Is your grandmother or
grandfather or both color
blind or a carrier of the trait?
Great
Grandfather
BOTH
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Great
Grandmother
If none, but you said your family
has history of it, click the option
above this.
Is your grandmother or
grandfather or both color
blind or a carrier of the
trait?
Grandfather Grandmother
BOTH
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If none, but you said your family
has history of it, click the option
above this.
Is your mother or father
or both color blind or a
carrier of the trait?
Father
BOTH
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Mother
If none, but you said your family
has history of it, click the option
above this.
Are any of your siblings
colorblind?
YES
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NO
What is your gender
Male
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Female
Are you colorblind?
YES
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NO
Does your spouse have
any family history of
color blindness?
YES
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NO
Is it the maternal side,
paternal side or both that have
history of color blindness
Paternal
Maternal
BOTH
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Is the spouse's grandmother
or grandfather or both color
blind or a carrier of the trait?
Great
Grandfather
BOTH
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Great
Grandmother
If none, but you said your family
has history of it, click the option
above this.
Is the spouse's grandmother
or grandfather or both color
blind or a carrier of the
trait?
Grandfather Grandmother
BOTH
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If none, but you said your family
has history of it, click the option
above this.
Is the spouse's mother or
father or both color blind
or a carrier of the trait?
Father
BOTH
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Mother
If none, but you said your family
has history of it, click the option
above this.
Are any of the spouse's
siblings colorblind?
YES
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NO
Is your spouse colorblind?
YES
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NO
Is your spouse colorblind?
YES
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NO
URGENT WARNING!!!!!
Your sons has a HIGH chance
of being colorblind while
daughters would have a lowmedium chance of being
colorblind
Are there any specific
Did anyone do anything to
treatments for this?
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help this people?
URGENT WARNING!!!!!
Your sons has a HIGH chance
of being colorblind while
daughters would have a
medium-high chance of being
colorblind
Are there any specific
Did anyone do anything to
treatments for this?
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help this people?
MINOR WARNING!!!!!
Your sons would have a light chance
of being color blind. Although your
daughters have a low-medium chance
of carrying the trait
Are there any specific
treatments for this?
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Did anyone do anything to
help this people?
Are you colorblind?
YES
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NO
Does your spouse have
any family history of
color blindness?
YES
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NO
Treatments
•
Surgery on the eye in the case of a
cataract causing it.
•
If it was passed on through
heredity there would be no
treatments to fix it. Therefore you
have to cope with it.
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Did anyone do anything to
help this people?
Advancements for Color Blind people
•
A lot of modern day electronic devises
and software now come with color
blind support.
•
More and more people are informing
the society about what color blindness
is and for those who have them as
well.
Click here for pictures about these advancements
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Advancements
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SOURCES
What to do when color blind
Have it
removed
Did you just had a cataract
No
Yes
Problem solved
Check and see if family has
history with being color blind
Click here to see how to
cope with it
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Click here to see
what can aid you
Sources
•Color Blind Test by TOMATO Co.,Ltd from http://itun.es/us/VaHYt.i
•http://en.wikipedia.org/wiki/File:US_Flag_color_blind.png
•http://en.wikipedia.org/wiki/File:XlinkRecessive.jpg
•http://www.allaboutvision.com/conditions/colordeficiency.htm
•http://www.tacticalgamer.com/battlefield-3/182862-colorblind-colors.html
•http://www.buzzle.com/articles/color-blindness-genetics.html
•http://genetics.thetech.org/ask/ask80
•http://www.colblindor.com/2006/06/02/chromosomes-involved-in-color-blindness/
•http://www.mayoclinic.com/health/poor-color-vision/DS00233
•http://www.colour-blindness.com/
•http://ghr.nlm.nih.gov/condition/color-vision-deficiency
•http://www.healthcommunities.com/color-vision-deficiency/causes.shtml
•http://www.ncbi.nlm.nih.gov/pubmedhealth/PMH0001997/
•http://colorvisiontesting.com/color2.htm