Contacts and Eyeglass Prescription Difference.?
October 23rd, 2010 | See the Top Answers to this Question Below
My contact lens prescription is:
Right eye: -3.25
Left eye: – 5.50
My eyeglass prescription is:
Right eye: -3.50
Left eye: -6.25
I’m wondering why there seems to be such a vast difference in my eyeglass and contact prescription for my LEFT eye. I’ve heard that it will typically be around a .25 to .50 difference?
I had a thorough eye check-up about a year ago, but I mainly went in for a contact lens fitting (doctor noted down eyeglass presc. as well) – I only asked for the eyeglass prescription now because I need new eyeglasses and when I took a look at the prescription, I was a little surprised.
I plan to take the prescription in and get new eyeglasses without doing a checkup. (We’ve moved since, so I can’t go back to the same doctor).
Any thoughts would be appreciated.
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Normally -0.50 would be taken off a – 6.25, but he took off 0.75 , no big deal.
That probably just helps you focus up close a bit easier, and would have probably no effect on your distance vision.
It looks like a very normal difference. He also took off a – 0.25 from the – 3.50 which normally isn’t needed, but it’s fine to help near focusing again.
There is nothing wrong with what he did there, and your distance vision is probably just fine like that.
If your glasses are new, this is a bit too much of a difference. Your contacts should be about 0.4 diopters different than your eyeglass Rx. If your glasses are old, you may have had a change in your than prescription. You may be overminused in your glasses if the new contacts are working fine.
vertexing. the higher the Rx…the bigger difference in the glasses Rx & contact Rx.
-3.50…not very high…very little difference between glasses & contacts Rx (-0.25)
-6.25…moderate…more difference between glasses & contacts Rx (-0.75)