Can anyone interprete my eye prescription?!
Question:
Can anyone interprete my eye prescription?
R: Sph: -0.75, Cyl: -0.50, Axis: 115
L Sph: -1.00, Cyl: -0.25, Axis: 90
How bad is my eye sight? Is it common for the cyl and axis values to be imperfect, even in normal eyesight? What's average vision? Any help is appreciated.
Answers:
Hello there !
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.
So since it is (-) you have myopia (nearsightedness) and the number just indicates the power in diopters that is needed in the lens to bend the light correctly on your retina.
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 differrent 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.
Your eye sight isn't that bad, its pretty common... (the bigger the number the worse your eyesight is) your numbers are fairly low.
Yes it is common for the cyl and axis numbers to be different in each eye... its very normal for your eyes to be different. And your wondering what average vision is.... well for having a correction I would say your vision is pretty average :)
Hope that helps you out a bit :)