Can You Please Interpret This Eye Prescription Please!!! 10 POINTS!?!
Question: My son went to see the eye doctor as a follow up exam and this time he got a prescription but i don't understand it at all, so it reads as follows:
O.D. +100 - CYL. -050 - AXIS. 015 - V.A. 20/20
O.S. +050 CYL. - Sph? AXIS, - nil - V.A. 20/20
I'm wondering if this doctor gave my son a fake prescription just because of the 20/20 at the end of the prescription.
10 points to the person who can interpret this correctly for me.
Thanks in advance.
Answers: My son went to see the eye doctor as a follow up exam and this time he got a prescription but i don't understand it at all, so it reads as follows:
O.D. +100 - CYL. -050 - AXIS. 015 - V.A. 20/20
O.S. +050 CYL. - Sph? AXIS, - nil - V.A. 20/20
I'm wondering if this doctor gave my son a fake prescription just because of the 20/20 at the end of the prescription.
10 points to the person who can interpret this correctly for me.
Thanks in advance.
Your OD (right eye) has an astigmatism and is farsighted. Astigmatism is really just correction for the shape of your eye. Instead of your eye ball being perfectly round its shaped more like a football. 80% of people have some sort of astigmatism.
Your OS (left eye) has no astigmatism, it is just farsighted.
OD- Right eye
OS- Left eye
Cyl & Axis- Correction for astigmatism
Sph- No astigmatism- just correction for distance vision.
V.a.- Visual acuity (how well you can see)
20/20= Perfect vision!
it seems fine
check out this site to see for yourself in case you want to double check:
http://www.opticsplanet.net/prescription...
i'm not completely familiar with all of the information, but i think the +100 and +050 are the actual strength, and your son is farsighted, not nearsighted, which would make sense that he has "20/20" vision, meaning he can see at 20 feet what a normal person can see at 20 feet...as he does not have difficulty with things far away, only up close. it's things less than one foot where he differs. here is a website that describes prescriptions: http://www.webmd.com/eye-health/how-read... as far as i know, the v.a. part is not usually included on a prescription and i would deduce that va=visual accuracy, the standard, can you read the letters on the chart, even if they're blurry.
Here are some hints as to what is included in your prescription:
O.D. means right eye, so the top line are all of the values for the right eye. The +1.00 (I don't think that it is 100, but rather 1.00) is a measure of the corrective strength of a lens, measured in diopters (just the units). O.S. = left eye, and it needs a corrective lens of +0.50. The "cyl" and "axis" are in reference to the degree and angle to which there needs to be correction of the lens if it is not perfectly spherical (aka astigmatism). This is the case for the right eye's lens.
VA = visual acuity. 20/20 just means that your son saw the proper letters in the eye chart that he should see when 20 meters away (he saw what you should see at 20 meters when he was at 20 meters).
O.D. is the right eye (It is latin abbreviation O-oculus, eye, D-derecha, right)
O.S. is the left eye (s-sinestra, left)
The correction for the right eye is pretty significant. The right eye needs minimal correction. The +100 and +50 are magnification factors to correct for farsightedness.
The CYl and Axis numbers are corrections for astigmatism. The 20/20 indicates the level of correction the lenses will provide (some peoples eyes can't be corrected to 20/20 and t would be indicated.
O.D. = Right eye
O.S. = Left eye
CYL = cylander (astimatism correction)
AXIS = Where the astigmatism is
V.A. = vision acuity
Doesn't look fake to me.
Looks like your son is +1 farsighted in the right eye and +.5 in the left eye. There's also a little bit of astigmatism at the 15 degree axis. Both eyes get 20/20 vision after being corrected.
*EDIT*
+100 is 1 diopter of farsightedness, which isn't too bad. +050 is only .5 diopters which is half of the other eye. I don't understand why the doctor put "Sph?" for the left eye (O.S.) but seeing that the axis is "nil" (nothing) it probably just means there is no sperical correction.
The 20/20 at the end of the prescription means that he has 20/20 vision WITH the correction provided by the prescription.