Bad eye sight?!
Question:
Bad eye sight?
okay.. i am 13 and i had classes since i was in third grade. i was like 100 degrees and 125degrees in third grade.Last year i was like 302degrees. I went and got a eye exam and the doctor said i was 450degrees. i am still using the glasses from last year and i can see very clearly in them. I don't even know how i got to 450degrees. what did i do? Are there anyways to lower your degrees or stay at the same degrees? please! i don't want to be like 800degress wheni get to highschool! Ohh yeah. I wear my glasses everyday. I also use the computer for at least 5 hrs. a day. I NEED HELP! PLEASE! Are there anyways to lower your degrees or stay at the same degrees?
Answers:
There are lots of types of people, animals, plants. In humans, some are tall, some are short, some are in between. Some are so big they make really good warriors, football players, basketball players. Some are smaller, faster, smoother, and make better ping pong players, tennis players, golfers. Lots of types, all with their body types that can excel at certain types of sports of professions, but not others. They just don't have the build for it.
In eyes, or cameras, there are different types as well. Some are used to see distant objects. They are focused far away. This would be a 'normal' eye. But these normal eyes eventually get tired, especially if they need to see things closely all the time. There are cameras, and eyes, that are focused closely, or near. A microscope is not a better instrument than a telescope, it just has a really, really short focal length, in the fractions of millimeters.
In people who are myopic or nearsighted or shortsighted, the eye is already focused at a distance sort of close to the eye. The power of those lenses is related to the distance in front of the eyes that they are focused.
P=1/d where d is the distance in meters. So if your eye was focused at a meter in front of you, that's a 1.00. That's just over a yard away. Beyond that, blurry.
If you were focused at half a meter in front of you, that's be a 2.00.
A third of a meter (just over a foot), would be +3.00.
A forth of a meter +4.00
A fifth of a meter +5.00
a tenth of a meter +10.00
So if you are between a 4.50 and a 5.00, that means that your eyes are already focused at about a fifth of a meter in front of you.
Those numbers are in diopters.
To make it so that your focal point isn't at a fifth of a meter, they have to put a lens in front of your eye that 'weakens' the focus of your eye as your eyes are sort of too strong.
So for you, they put a -4.50 lens or a -5.00 lens to move that focal point out to infinity, or optical infinity.
The lens makes the light rays diverge as IF they came from YOUR focal point.
People who are nearsighted have no problem reading. They make very good scholars, lawyers, doctors, professors,...
Bill gates is very nearsighted. He has to wear his glasses all the time. Poor guy. His brain isn't nearsighted, just the focus of his eyes.
Will this nearsightedness progress? In some people it does, but at your age, usually it stabilizes. As the lens in your eyes gets bigger, and it does so in everyone, it'll slowly get stronger and you'll get a new pair of glasses every 3 years or so, just like farsighted people, and 'normal' people. Sooner or later, everyone needs the help.
Not wearing glasses only makes it so you can't SEE well. Wearing glasses does NOT weaken your eyes, nor harm your eyes, they just FOCUS the camera so it'll take a clear picture. And when you're in high school and you see a cute lady over there, NOT wearing your glasses makes you NOT be able to see her. And she might be the ONE! and you missed it because you were being cool by not having glasses on. Hmmmmmmmmmm?
Because you wear glasses doesn't make you nice.
Because you don't wear glasses doesn't make you nice, or kind, or mean, or inconsiderate or funny or sad.
If you bother to study in high school, you'll go to college.
And college is a wonderful time. If you bother to study there, you'll get into a graduate school or law school or medical school and that's even more wonderful. You'll live till 90 or so, which means you'll be OUT of school for about 65 years. It's how you use your school to develop your thinking, your way of handling problems, your way of climbing those steeper hills that's up to you. Not whether or not you are cool, whether or not you wear glasses. Not wearing glasses?
Doesn't make any sense at all.