title: Retinal Image Simulation of Subjective Refraction Techniques.
abstract: Refraction 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.
authors.affiliation: Department of Applied Physics, University of Zaragoza, Zaragoza, Spain.
authors.forename: Sara
authors.initials: S
authors.lastname: Perches
authors.affiliation: Department of Applied Physics, University of Zaragoza, Zaragoza, Spain.
authors.forename: M Victoria
authors.initials: MV
authors.lastname: Collados
authors.affiliation: Department of Applied Physics, University of Zaragoza, Zaragoza, Spain.
authors.forename: Jorge
authors.initials: J
authors.lastname: Ares
mesh_terms: D000065:Accommodation, Ocular; D001251:Astigmatism / Q000175:diagnosis* / Q000628:therapy; D003198:Computer Simulation; D003261:Contact Lenses; D003941:Diagnostic Techniques, Ophthalmological; D005139:Eyeglasses; D006801:Humans; D007368:Interferometry; D012030:Refractive Errors / Q000175:diagnosis*; D012160:Retina / Q000502:physiology*; D012984:Software