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Generally because people who are short sighted (vision - not in thought) will reproduce just like people who are not short sighted. A trait is only lost from a species if it inhibits the reproductive success of the carrier. But in the humans' social environment, people who are short sighted continue to have offspring who are short sighted as well. In other words, a standard for marriage (and other unions) is not determined by perfect eyesight.
The only way for the gene for short sightedness to be eliminated would be for those who are short sighted to be eliminated from the population.
What else can I help you with?
What the difference between short sighted people and short sighted people?
nothing
What sports can short sighted people do?
they can play pingpong.
Can short sighted people become pilots?
if it's correctable.
If you are myopic are you long sighted or short sighted?
long-sighted
When people are myopic are they long sighted or short sighted?
They're short-sighted. Yes, the term "Myopia" means short sightedness. This means that light entering the eye is focused in front of the retina rather than on it. The opposite term is "Hyperopia" which means long sightedness. This means the light entering the eye is focused behind the retina rather than on it.
How do you change computer system for short sighted people?
change front
Why are convex lens useful?
convex lenses are for short sighted people.
If you are myopic are you long -sighted or short -sighted?
If you are myopic, you are short-sighted. Myopia is a condition where near objects are seen clearly, but distant objects are blurry.
What are the release dates for Short Sighted - 2010?
Short Sighted - 2010 was released on: USA: 2010
What are the release dates for Short Sighted - 2011?
Short Sighted - 2011 was released on: USA: May 2011
Why are food chains and food webs getting destroyed?
Most people are short-sighted and selfish.
Is -5.75 short sighted?
yes
