Tuesday, July 14, 2015

Convert toric prescription to spherical prescription?


I know that it won't be as equivalent to toric lenses, but I want to be able to buy these specific colored contact lenses for occasional wear that only use spherical prescriptions.

Is there a certain formula that is used to convert toric to spherical?

My prescription:

Right eye
D: -1.00
CYL/AXIS: -0.75 / 170
BC: 8.5
DIA: 14.5

Left eye
D: +0.00
CYL/AXIS: -2.25 / 180
BC: 8.5
DIA: 14.5

If you can calculate it for me that would be greatly appreciated. Thanks!

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