What do these numbers mean? (Eyesight)!


Question: What do these numbers mean!? (Eyesight)
!.!.!.!. SPH CYL AXIS!.!.
R -3!.25 -0!.75 110!.0
L -3!.00 -0!.50 65!.0

I no im short sighted, but can anyone tell me what each value refers to!?
Www@Answer-Health@Com


Answers:
The R is the right eye of course , and the whole line is for that eye!.

- 3!.25 Sphere is the correction for your myopia ( nearsightedness)
-0!.75 CYLinder is a mild correction for astigmatism
110 is the axis!.!.!.which is just the direction that the -0!.75 is applied in your lenses!. The axis could be anywhere between 1 and 180 degrees!. A higher or lower number on the axis means nothing in terms of better or worse, it is just a direction

Then the same applies for your left eye!.

The other numbers are in units of measurement called diopters!.!.!.1 diopter, 2 diopters!.!.!.etc

Does that explain it !?



Www@Answer-Health@Com

Each number is measuring the amount of power needed to help light focus on the back of your retina!. The power needed is influenced by two factors, the shape (curvature) of your cornea (the front surface of your eye) and the length of your eyeball!. Nearsightedness (short sighted) can be caused by the eyeball being slightly longer than normal, causing the light to focus in front of the retina, or from the curvature of the cornea, which also causes the light to focus in front!. The power of the lenses moves the focal point back to focus the light directly on your retina for a clear image!.Www@Answer-Health@Com

first number refers to diabtor of lenz to correct your vision second is for correction of stgmatism third is angle of the secondWww@Answer-Health@Com

You def!. need glasses!. Mine is around 2!.0 each that is what I think is called 20 20 vision!! Your right is weaker than the left eye tooWww@Answer-Health@Com

It's the measurement of your eye balls and used for getting glasses to correct your really bad myopiaWww@Answer-Health@Com

the qualityWww@Answer-Health@Com





The consumer health information on answer-health.com is for informational purposes only and is not a substitute for medical advice or treatment for any medical conditions.
The answer content post by the user, if contains the copyright content please contact us, we will immediately remove it.
Copyright © 2007-2011 answer-health.com -   Terms of Use -   Contact us

Health Categories