title: Estimation of dioptric power from measurements that may include measurements of dioptric power.
abstract: A general routine exists for estimating dioptric power from any number of measurements of sagitta, lens thickness, meridional curvature or power, and prismatic effect. This paper shows how the routine is modified when among the measurements there are measurements of dioptric power itself.
authors.affiliation: Department of Optometry, Rand Afrikaans University, Johannesburg, South Africa.
authors.forename: W F
authors.initials: WF
authors.lastname: Harris
mesh_terms: D006801:Humans; D008433:Mathematics; D009799:Ocular Physiological Phenomena; D012029:Refraction, Ocular