title: Dark focus and dark vergence: an experimental verification of the configuration of the dual-interactive feedback model.
abstract: Based on the dual-interactive feedback model, dark focus and dark vergence designate a point on a line describing the response AC/A ratio. In order to verify the relationship between dark focus and dark vergence, we predicted the dark vergence from the measured dark focus when the measurements were based on the response-based calculated and gradient AC/A ratios. For 10 subjects, the correlations between predicted and measured dark vergence values were high. The prediction was better when using the gradient AC/A ratio.
authors.affiliation: University of Houston, College of Optometry, TX 77204-6052, USA.
authors.forename: B C
authors.initials: BC
authors.lastname: Jiang
authors.forename: W M
authors.initials: WM
authors.lastname: Woessner
mesh_terms: D000065:Accommodation, Ocular / Q000502:physiology*; D000293:Adolescent; D000328:Adult; D003290:Convergence, Ocular / Q000502:physiology*; D003624:Darkness; D005246:Feedback / Q000502:physiology; D006801:Humans; D008433:Mathematics; D008954:Models, Biological