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Interfacial Phenomena and Heat Transfer
ESCI

ISSN Print: 2169-2785
ISSN Online: 2167-857X

Open Access

Interfacial Phenomena and Heat Transfer

DOI: 10.1615/InterfacPhenomHeatTransfer.v1.i4.40
pages 357-381

A MODEL FOR THE TEAR FILM AND OCULAR SURFACE TEMPERATURE FOR PARTIAL BLINKS

Quan Deng
Department of Mathematical Sciences, University of Delaware, Newark, Delaware 19711, USA
Richard J. Braun
University of Delaware Department of Mathematical Sciences Newark DE 19716, USA
T. A. Driscoll
Department of Mathematical Sciences, University of Delaware, Newark, Delaware 19711, USA
P. E. King-Smith
College of Optometry, The Ohio State University, Columbus, Ohio 43210, USA

ABSTRACT

In this paper, we investigate the dynamics of tear film and the associated temperature variation for partial blinks. We investigate the mechanism of fluid supply during partial blink cycles, and compare the film thickness with observation in vivo. We find that varying the thickness of the fluid layer beneath the moving upper lid improves the agreement for the in vivo measurement of tear film thickness after a half blink. By examining the flux of the fluid, we provide an explanation of this assumption. We also investigate the temperature dynamics both at the ocular surface and inside the simulated anterior chamber. Our simulation results suggest that the ocular surface temperature readjusts rapidly to normal temperature distribution after partial blinks.


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