Lateral shearing interferometry for analysis of tear film surface kinetics

Szezesna, Dorota & Iskander, D. Robert (2010) Lateral shearing interferometry for analysis of tear film surface kinetics. Optometry and Vision Science, 87(7), pp. 513-517.

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Purpose: To date, there have been no measuring techniques available that could clearly identify all phases of tear film surface kinetics in one interblink interval. ----- -----

Methods: Using a series of cases, we show that lateral shearing interferometry equipped with a set of robust parameter estimation techniques is able to characterize up to five different phases of tear film surface kinetics that include: (i) initial fast tear film build-up phase, (ii) further slower tear film build-up phase, (iii) tear film stability, (iv) tear film thinning, and (v), after a detected break-up, subsequent tear film deterioration. ----- -----

Results: Several representative examples are given for estimating tear film surface kinetics in measurements in which the subjects were asked to blink and keep their eyes open as long as they could. ----- -----

Conclusions: Lateral shearing interferometry is a noninvasive technique that provides means for temporal characterization of tear film surface kinetics and the opportunity for the analysis of the two-step tear film build-up process.

Impact and interest:

16 citations in Scopus
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14 citations in Web of Science®

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ID Code: 40029
Item Type: Journal Article
Refereed: Yes
Additional URLs:
Keywords: tear film kinetics, tear film build-up, tear film break-up, parameter estimation
DOI: 10.1097/OPX.0b013e3181e17279
ISSN: 1040-5488
Subjects: Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > OPTOMETRY AND OPHTHALMOLOGY (111300)
Divisions: Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
Current > Schools > School of Optometry & Vision Science
Deposited On: 10 Feb 2011 21:39
Last Modified: 10 Feb 2011 21:40

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