Hydrogel contact lens dehydration in controlled environmental conditions

Morgan, Philip B., Efron, Nathan, Morgan, Sarah L., & Little, Simon A. (2004) Hydrogel contact lens dehydration in controlled environmental conditions. Eye and Contact Lens, 30(2), pp. 99-102.


PURPOSE: To ascertain the impact of environmental conditions on hydrogel contact lens dehydration. METHODS: Six young adult subjects wore an ACUVUE lens in one eye and a Proclear lens in the other eye for 200 minute sessions in arid, temperate, and arctic conditions, maintained in a purpose-built environmental chamber in an aerospace medical facility. Dehydration was determined by measuring lens water content before and after each session using a soft contact lens refractometer. Comfort of the lenses was assessed at the conclusion of each session. RESULTS: Lens dehydration was similar for the three environmental conditions (F2 = 0.3, P = 0.75). There was less dehydration with the Proclear lens compared with ACUVUE lens (F1 = 43.0, P = 0.001). No differences were detected with respect to lens comfort between the three environmental conditions (F2 = 2.0, P = 0.18) or the two lens types (F1 = 1.4, P = 0.29). CONCLUSION: Soft contact lens dehydration is unaffected by environmental extremes.

Impact and interest:

24 citations in Scopus
Search Google Scholar™

Citation counts are 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: 11041
Item Type: Journal Article
Refereed: Yes
Additional Information: Self-archiving of the author-version is not yet supported by this publisher.
For more information, please refer to the journal’s website (see hypertext link) or contact the author.
Additional URLs:
Keywords: Hydrogel contact lens—Soft contact lens—Water, content—Dehydration—Comfort—Humidity—Temperature— Environment
ISSN: 1542-233X
Subjects: Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > OPTOMETRY AND OPHTHALMOLOGY (111300)
Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > OPTOMETRY AND OPHTHALMOLOGY (111300) > Optical Technology (111302)
Divisions: Current > Research Centres > Centre for Health Research
Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
Copyright Owner: Copyright 2004 Lippincott Williams & Wilkins
Deposited On: 28 Nov 2007 00:00
Last Modified: 29 Feb 2012 13:29

Export: EndNote | Dublin Core | BibTeX

Repository Staff Only: item control page