Dynamics of a gel-based artificial tear film with an emphasis on dry disease treatment applications

Hamza Mehdaoui, Hamid Ait Abderrahmane, Clement de Loubens, Faïçal Nait Bouda, Sofiane Hamani

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

This paper discusses the spreading of gel-based ophthalmic formulation on the cornea surface assumed to be flat. We show that gel-based formulations exhibit rheological behaviors that the Herschel–Bulkley model can describe. The continuity and momentum equations are solved numerically using the monofluid formulation and the volume-of-fluid (VOF) method. We investigated the influence of the rheological properties, namely the consistency, the yield stress, and the flow behavior index, on the spreading of a gel-based artificial tear over the cornea surface. We propose optimal values of these properties for efficient gel-based artificial tears.

Original languageBritish English
Article number215
JournalGels
Volume7
Issue number4
DOIs
StatePublished - Dec 2021

Keywords

  • Dry eye disease
  • Gel-based artificial tears
  • Herschel–Bulkley model
  • Tear film breakup
  • VOF method

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