From what I can discern about this article a good working knowledge of algebra, statistics, trigonometry and perhaps calculus(curves and area of curves) would be necessary for any decison related to ones own lasik and perhaps enhancement.

Most articles I read on lasik either give too little info or skew the info in a deceitful way.

http://www.cfao.ucolick.org/pubs/presentations/eyedesign/05_aberrations_GY.pdf