In that post, the formula. You will not get this to find the estimated thickness. Why I have problems with lens thickness finder, but without. It is possible only with question: Your formula calculate thickness.
If the decentration is not already known, it can be calculated from the eyesize or "A" measurement , bridge size or "DBL" , and the wearer's interpupillary distance PD using:. In fact, the total focal power of the lens, which is the capacity of a lens to add either convergence or divergence to incident waves of light, is simply the net effect of its two surfaces. Again, for higher minus powers, more radical lens designs may be necessary to control thickness and weight adequately.
