Dynamics of a Gel-Based Artificial Tear Film with an Emphasis on Dry Disease Treatment Applications

Autor: Hamza Mehdaoui, Hamid Ait Abderrahmane, Clement de Loubens, Faïçal Nait Bouda, Sofiane Hamani
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Gels, Vol 7, Iss 4, p 215 (2021)
Druh dokumentu: article
ISSN: 2310-2861
DOI: 10.3390/gels7040215
Popis: 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.
Databáze: Directory of Open Access Journals