title: Toward an adaptive model of the human eye.
abstract: A model of the human eye is presented with the crystalline lens treated as having a gradient-index structure. By defining an accommodation index I ranging from 0 (unaccommodated) to 1 (accommodated), the optical parameters of the eye in various states of accommodation may be found. The results are in agreement with experimental values.
mesh_terms: D000221:Adaptation, Ocular; D005123:Eye / Q000033:anatomy & histology; D006801:Humans; D007908:Lens, Crystalline / Q000033:anatomy & histology / Q000502:physiology*; D008433:Mathematics; D008954:Models, Biological; D009799:Ocular Physiological Phenomena