Transcript Color Blindness - Sacred Heart Academy

By:
Tiffany Torello
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Color Blindness is when a person has trouble
seeing either red, green, or blue
If a person has trouble seeing one of these
colors they will not be able to see the different
shades of that color or a mix of the color
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Color Blindness is genetically inherited as
x-linked recessive
Could become colorblind later in life
because
◦ shaken baby syndrome
◦ UV damage
◦ a serious eye injury
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5 to 8% of males are colorblind
.05% of females are colorblind
More males are colorblind because its
x-linked recessive
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Eyes see by light stimulating the retina
People have three types of cone cells in their
eyes
Each cone cells sees a different color
People who are color blind either don’t have one
of the cones or one of them doesn’t work
correctly
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Its extremely rare for someone to be fully
colorblind to all the colors
◦ Monochromasy: complete absence of any color
stimulations
◦ Trichromasy: normal cones and light sensitivity
pigments
◦ Protonomaly: red weakness
◦ Deuteranomaly: green weakness
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One type of test is
arranging colored
chips in order of
how similar the
colors look to each
other
People who are
color blind cant
arrange them
correctly
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Because color blindness is x-linked recessive
it can’t be treated or fixed
There are special contact lenses that help a
person see some differences between shades
of colors