In a Contact Lens Prescription, Is the AXIS Really an Important Feature?
July 16th, 2010 | See the Top Answers to this Question Below
i mean when buying contacts online..i know all values except the axis..is there any default value i can use for axis n both eyes?
the problem is, i did the eye testing for contact lenses and when they told me the price it was really too much..for 6 months. i can get for less than half that price online. but when i asked for the prescription they did not give it. i must go again and tell them I am willing to pay for the prescription..and i have no idea of buying from them cos its too expensive. they have nothing to lose..only gain by me paying for the rx really.
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The axis is important. A good default value would be zero.
How do you know that you have astigmatism with contacts lenses on? Find out.
If you have a prescription for lenses to correct astigmatism, the axis will be on the prescription.
You certainly can’t guess at the axis…the axis is what determines whether you will see with them or not.
If your prescription looks something like
OD – 2.00
OS – 2.25
Then that is just a spherical correction, there will be no cylinder, therefore no axis.
I’m really curious how you " know" all the values…do you even have a prescription for contacts ?