title: Eccentric photorefraction: optical analysis and empirical measures.
abstract: An optical analysis of a photographic technique, "eccentric photorefraction," designed to measure refraction and accommodative states along a single meridian of the eye, is presented. Empirical measures taken from a model eye support the theoretical derivation. The application of the technique for use with human infants is discussed with reference to measurements taken from human eyes.
mesh_terms: D006801:Humans; D007223:Infant; D008433:Mathematics; D008954:Models, Biological; D009216:Myopia / Q000175:diagnosis; D012029:Refraction, Ocular; D012030:Refractive Errors / Q000175:diagnosis*; D014787:Vision Tests / Q000379:methods