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Because the lens (translucent layer of membrane over the iris) is either too thick, or too thin, causing light to be reflected at the wrong angle.
There are two kinds of vision impairment:
Long Sightedness
Short Sightedness
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Does overweight people have asthma more than skinny people?
I don't think there's a tendency for overweight people to become asthmatic, BUT there is a tendency for some people with asthma to become overweight if they have difficulty breathing properly during exercise.
You are seeing a married woman who is always jealous?
some people are but not most people
What does The pessimist sees the difficulty in every opportunity the optimist the opportunity still have them in the future mean?
it means that some people will see the difficulty in every challenge but other see the challenge in every difficulty.
How does difficulty in getting water affect the quality of life of some people?
pleas people it's very importand to me
What would people seeing their reflections in the Vietnam Veterans Memorial symbolize?
For some people, possibly, a resemblance of the man's name that they're looking at. Seeing "his image", if you will.
What are some practical uses of ultrasound?
Cleaning, seeing under water, seeing inside people, remote control devices.
What does seeing a black feather mean?
Some people believe that seeing a black feather means that you will have good luck or that your guardian angel is close. Some people believe that seeing a black feather is a warning of danger or a sign of something coming up in your life that will be a good change.
What are the disadvantages of military robots?
Some disadvantages of military robots are their cost, lack of intelligence, and difficulty in programming. Unlike soldiers, they require close monitoring to ensure they function properly.
Why do some people react to people with different appearances?
Could just be the surprise of seeing something for the first time , or seeing something in an unexpected place. Some people are truly xenophobic [ fearful of strangers ] . Some are just not able to disguise their reactions , and don't mean to be rude or hurtful.
Why does some house have frosted window?
To get some light in while preventing people outside from seeing into the house.
Does dermatomyositis affect swallowing?
Some people have difficulty swallowing and chewing when the muscles of the face and esophagus are affected
What causes some children with Marfan syndrome to do poorly in school?
In addition, a child with undiagnosed nearsightedness related to Marfan may have difficulty seeing the blackboard or reading printed materials, and thus do poorly in school.
