QUT ePrints

Characteristics of the pre-lens tear film during hydrogel contact lens wear

Young, Graeme & Efron, Nathan (1991) Characteristics of the pre-lens tear film during hydrogel contact lens wear. Ophthalmic and Physiological Optics, 11(1), pp. 53-58.

Abstract

The integrity of the pre-lens tear film (PLTF) is an important determinant of the clinical performance of contact lenses. The PLTF of eight hydrogel lenses, ranging from 36.5% to 85% water content, was assessed on six asymptomatic lens wearers in a randomized, double-masked experiment. Using a specular reflection technique, the thicknesses of the lipid and aqueous phases were found to be greater on lenses of higher water content. Water content was measured before and after 90 min wear using a hand-held refractometer. Non-invasive tear break-up time was also found to be greater for higher water content lenses. No association was found between lens dehydration and PLTF characteristics. The differences in PLTF noted in this study may help to explain the differences noted between some lenses in their rates of surface deposition.

Impact and interest:

48 citations in Scopus
Search Google Scholar™
34 citations in Web of Science®

Citation countsare sourced monthly from Scopus and Web of Science® citation databases.

These databases contain citations from different subsets of available publications and different time periods and thus the citation count from each is usually different. Some works are not in either database and no count is displayed. Scopus includes citations from articles published in 1996 onwards, and Web of Science® generally from 1980 onwards.

Citations counts from the Google Scholar™ indexing service can be viewed at the linked Google Scholar™ search.

ID Code: 3374
Item Type: Journal Article
Additional Information: For more information, please refer to the journal's website (see link) or contact the author. Author contact details: n.efron@qut.edu.au
Additional URLs:
Keywords: Contact Lenses, Hydrophilic, Tears/, physiology, Adult, Desiccation, Double, Blind Method, Female, Humans, Male, Optics, Random Allocation, Surface Properties, Water
ISSN: 0275-5408
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
Copyright Owner: Copyright 1991 Blackwell Publishing
Deposited On: 17 Feb 2006
Last Modified: 15 Jan 2009 16:56

Export: EndNote | Dublin Core | BibTeX

Repository Staff Only: item control page