Seannie
Supremacy Member
- Joined
- Aug 26, 2011
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So for your case of 3.00D of cylinder power (I just take it as 300 because you didn't say how much above 300), an axis rotation of 1.15 degrees will result in a power shift of 0.12D.
In comparison, someone with 1.00D of cylinder power would, by the standard, tolerate up to 3.44 degrees of rotation.
WAH KAO NO WONDER IM SO UNLUCKY NOW I KNOW WHY. BECOS MY OPTICIANS ARE ALL NOT UP TO STANDARD!!!! KNN. Imagine those optical shops off my axis by 5 degrees, its 0.12 × 5 = 6D power shift! ****!
), an axis rotation of 1.15 degrees will result in a power shift of 0.12D.