doi:10.1371/journal.pone.0150204engPerches, SaraCollados, María VictoriaAres, JorgeRetinal image simulation of subjective refraction techniquesART-2016-94379Refraction techniques make it possible to determine the most appropriate sphero-cylindrical lens prescription to achieve the best possible visual quality. Among these techniques, subjective refraction (i.e., patient’s response-guided refraction) is the most commonly used approach. In this context, this paper’s main goal is to present a simulation software that implements in a virtual manner various subjective-refraction techniques—including Jackson’s Cross-Cylinder test (JCC)—relying all on the observation of computer-generated retinal images. This software has also been used to evaluate visual quality when the JCC test is performed in multifocal-contact-lens wearers. The results reveal this software’s usefulness to simulate the retinal image quality that a particular visual compensation provides. Moreover, it can help to gain a deeper insight and to improve existing refraction techniques and it can be used for simulated training.2016http://zaguan.unizar.es/record/4844710.1371/journal.pone.0150204http://zaguan.unizar.es/record/48447oai:zaguan.unizar.es:48447info:eu-repo/grantAgreement/ES/UZ/UZ2011-CIE-02info:eu-repo/grantAgreement/ES/MINECO/FIS2014-58303-Pinfo:eu-repo/grantAgreement/ES/MINECO/FIS2011-22496PloS one 11, 3 (2016), e0150204 [15 p]byhttp://creativecommons.org/licenses/by/3.0/es/info:eu-repo/semantics/openAccess