If I Have Astigmatism and Want to Buy Circle Lenses but Not Buy Toric Lenses, What Should I Do?
March 26th, 2010 | See the Top Answers to this Question Below
I heard from a friend that you just add 1 on your prescription? For example, my prescription is -6.00 with astigmatism do I just put down -7.00 as it instead? Or something?
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If you wear the circle lenses that do not have astigmatism correction when you normally have it, then you will not see as well. If they are just for a special occasion then you should be ok. If you are trying to compensate for the astigmatism, then you need to add half of your cylinder power to the spherical number. Example if you have a cylinder power of -1.00 then you would add -.50 to the sphere. If you end up with a number that is between spherical powers, then go with the lower number.
If in doubt ask your doctor.