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Dynamics of tear film deposition and draining

Dynamics of tear film deposition and draining
Dynamics of tear film deposition and draining
This paper investigates the deposition of the tear film on the cornea of the human eye. The tear film is laid down by the motion of the upper eyelid and then subsequently flows and thins. Of particular interest is the stability of the tear layer and the development of dry patches on the cornea. While there has been significant research on the behaviour of tear films between blinks, this paper focuses on understanding the mechanisms which control the shape and thickness of the deposited film and how this affects the subsequent film behaviour. Numerical and analytical methods are applied to a lubrication model which includes the effects of surface tension, viscosity, gravity and evaporation. The model reveals the importance of the eyelid velocity, motion of the surface lipid layer and the storage of tear film between blinks. Keywords: eye; tear film; film deposition; film rupture.
1477-8599
265-288
Jones, M.B.
42e3c64b-175e-476a-aec7-16186255d452
Please, C.P.
118dffe7-4b38-4787-a972-9feec535839e
McElwain, M.B.
d41ef7bf-7eb1-4fe4-9be0-bbf6342f6b5c
Fulford, D.L.S.
474cf986-3944-437f-b027-708ed462daaf
Roberts, G.R.
4523bdfa-d62e-4b34-98f9-458a100ef0b8
Collins, A.P.
34201c8c-f333-4e41-a0b0-94b45ec1c4db
Jones, M.B.
42e3c64b-175e-476a-aec7-16186255d452
Please, C.P.
118dffe7-4b38-4787-a972-9feec535839e
McElwain, M.B.
d41ef7bf-7eb1-4fe4-9be0-bbf6342f6b5c
Fulford, D.L.S.
474cf986-3944-437f-b027-708ed462daaf
Roberts, G.R.
4523bdfa-d62e-4b34-98f9-458a100ef0b8
Collins, A.P.
34201c8c-f333-4e41-a0b0-94b45ec1c4db

Jones, M.B., Please, C.P., McElwain, M.B., Fulford, D.L.S., Roberts, G.R. and Collins, A.P. (2005) Dynamics of tear film deposition and draining. Mathematical Medicine and Biology, 22(3), 265-288. (doi:10.1093/imammb/dqi012).

Record type: Article

Abstract

This paper investigates the deposition of the tear film on the cornea of the human eye. The tear film is laid down by the motion of the upper eyelid and then subsequently flows and thins. Of particular interest is the stability of the tear layer and the development of dry patches on the cornea. While there has been significant research on the behaviour of tear films between blinks, this paper focuses on understanding the mechanisms which control the shape and thickness of the deposited film and how this affects the subsequent film behaviour. Numerical and analytical methods are applied to a lubrication model which includes the effects of surface tension, viscosity, gravity and evaporation. The model reveals the importance of the eyelid velocity, motion of the surface lipid layer and the storage of tear film between blinks. Keywords: eye; tear film; film deposition; film rupture.

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Published date: 2005

Identifiers

Local EPrints ID: 29268
URI: http://eprints.soton.ac.uk/id/eprint/29268
ISSN: 1477-8599
PURE UUID: c296e5ca-8275-4dc9-9f64-d8cf740f33bf

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Date deposited: 11 May 2006
Last modified: 09 Jan 2022 04:55

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Contributors

Author: M.B. Jones
Author: C.P. Please
Author: M.B. McElwain
Author: D.L.S. Fulford
Author: G.R. Roberts
Author: A.P. Collins

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