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can anyone explain the degree system used for vision tests?
i have like 100degree both eyes, should i be wearing my glasses like constantly or only when i have to look really far? blah bla blah..
ya i am curious about the degree system as well
Well I guess you are asking about the prescription the eye doctor has written for you.... Your prescription is actually written in diopters....
A diopter is a unit of measurement of optical power of a lens, which is equal to the reciprocal of the focal length measured in meters.
In an eyeglass prescription you will always see a "sph" number written, and if you have astigmatism you will see "cyl" and axis written as well.
I have composed a more in depth explanation of the components of an optical prescription:
Sphere:
The first number you see in an eyeglass prescription is the sphere "sph". This number indicates the degree of hyperopia (farsightedness) or myopia (nearsightedness) in the eye. Plus (+) power indicates hyperopia, while minus (–) power indicates myopia.
Cylinder:
The second part of the of the prescription cylinder "cyl" indicates that you have an astigmatism. Astigmatism is the amount that the refractive structures of the eye (primarily, the front and back surfaces of the cornea and the front and back surfaces of the crystalline lens) vary or deviate from sphericity or a spherical shape.
Axis:
The last number is the axis (you only have axis if you have cyl) The axis number doesn't mean that your vision is good or bad.....it is just the angle required for the prescription in your lenses to correct your vision
Because you have 2 different powers (sph and cyl) in each eye that means in each lens you need those 2 different powers in it. The axis just tells the person who makes the glasses at what angle each power is at.
As for your prescription..... it is depending on what type of correction you need as for when you will need to wear them.
You will see either a minus or plus sign written in front of the sphere number. If you have a minus sign in you will more likely need your glasses to see far distances and if you have a plus sign you will more likely need them for reading....
A prescription of either -1.00 D or +1.00 is still considered fairly low....
Prescriptions are written in 0.25 increments and start at 0.00 and can go up to like -/+25.00 and even more (just to put your prescription into perspective) The higher the number the stronger the prescription....
LOL anyways I hope I didn't confuse you too much.... If I knew what your exact prescription was I could explain it to you better..... you should ask your eye doctor again!!!!! 
Hope this helps
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