Dynamics of an oscillating viscoelastic sphere: A model of the vitreous humor of the eye

Issue title: Special Double Issue for the Fifth International Congress of Biorheology. Dedicated to Hellmut Hartert. Baden-Baden, F.R. Germany, 20–24 August 1983

Guest editors: Alfred L. Copley

Article type: Research Article

Authors: Buchsbaum, G.^a | Sternklar, M.^a | Litt, M.^a | Grunwald, J.E.^b | Riva, C.E.^b

Affiliations: [a] Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA 19104 | [b] Scheie Eye Institute and Department of Ophthalmology, University of Pennsylvania, Philadelphia, PA 19104

Note: [] Accepted by Editor Y.C.B. Fung

Abstract: The vitreous humor of the eye is modelled as a homogeneous viscoelastic sphere. The analysis provides a relation for the displacement amplitude and phase following oscillatory and step excitations, as functions of the storage and loss moduli of the vitreous gel, and allows calculation of the resolution requirements for a non-invasive optically-based diagnostic method for the viscoelastic properties of the vitreous.

Keywords: Vitreous humor, gel, viscoelastic, rheology, modelling

DOI: 10.3233/BIR-1984-211-230

Journal: Biorheology, vol. 21, no. 1-2, pp. 285-296, 1984