Manual of refraction

Manual of refraction

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Since it is convenient to use the minus cylinder form, the following instructions are given: Align the plus meridian with the single line. This will be the ... 105Ad, a 4.0 D ex. 110Ad will cause greater discomfort than a 3.0 D ex. 105Ad. An error in the anbsp;...

Title:Manual of refraction
Author:Albert E. Sloane
Publisher:Little Brown GBR - 1970


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