The unit value used to measure the degree of myopia is called Diopters which relates to the power of the spectacle lenses used to correct it. For comparison purposes the average myopic person is approximately - 3.00 diopters ( minus refers to myopia ) The higher the negative number, the higher the degree of myopia.
With high myopia (-6.00 and up) one is at increased risk of glaucoma, retinal detachments and posterior vitreous detachments.
The "Sphere" column indicates how nearsighted or farsighted you are. "Cylinder" refers to the measurable degree of astigmatism of your central cornea. The cylindrical number describes the dioptric difference between your cornea?s steepest and lowest curves.
If you have astigmatism, your cornea is shaped like the back of a spoon, curved more on one side than the other. The orientation of the spoon shape can differ from person to person, for instance like a spoon standing on end or on it?s side. The "Axis" column describes the orientation in degrees from horizontal. Most left and right eyes with astigmatism are symmetrical.
Dayumn.... I had never gotten my prescription and on a whim had it faxed over...
Give the blind dud some love...
______________RIGHT____LEFT
Sphere Power___-7.00 _7.25
Axis___________ 165 _ 024