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Comparison between the method of determining the power and axis of the cylinder by the Jackson cross cylinder technique and a Lebensohn's type astigmatic chart

1 October 1966


The purpose of this study is to make a comparison between the Jackson Cross Cylinder (J.C.C.) technique of determining the axis and power of the far cylinder with a Lebensohn's type of astigmatic chart. The authors of this paper would like to know if the Lebensohn's type astigmatic chart can be substituted for the Jackson Cross Cylinder test.


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