Sergio Bonaque (CiViUM and Instituto Oftalmológico Amigó) has published a new manuscript in the Journal of Refractive Surgery in collaboration with the University of Oklahoma (USA). In this paper they indicate how to reduce the induction of spherical aberration in the hyperopic LASIK. These results are applicable when the WaveLight Allegretto platform is used, a very common refractive surgery laser used in Europe.
http://www.healio.com/ophthalmology/journals/jrs/2015-12-31-12/%7B90218bb1-2ef2-4e7a-bc48-d68909395f15%7D/control-of-induced-spherical-aberration-in-moderate-hyperopic-lasik-by-customizing-corneal-asphericity