Dehydration of hydrogel lenses: environmental influences during normal wear

Brennan, Noel A., Efron, Nathan, Bruce, Adrian S., Duldig, Daniel I., & Russo, Noel A. (1988) Dehydration of hydrogel lenses: environmental influences during normal wear. American journal of optometry and physiological optics, 65(4), pp. 277-281.


To examine whether certain aspects of the environment can have a significant effect upon the steady-state water content of hydrogel contact lenses during normal wear, nine volunteers monitored ambient temperature, ambient humidity, and the water content of their contact lenses over a 5-day period of daily lens wear. Three subjects wore Hydron zero-6 lenses (38% nominal water content), three wore Hydrocurve II lenses (55%), and three wore Permalens contact lenses (71%). The results indicate that a knowledge of ambient temperature and humidity is of little value in predicting the water content of hydrogel lenses under normal wearing conditions, at least with respect to the range of environmental conditions encountered in the course of this experiment.

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17 citations in Web of Science®
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ID Code: 3357
Item Type: Journal Article
Refereed: Yes
Additional Information: For more information, please refer to the journal’s website (see link) or contact the author. Author contact details:
Additional URLs:
Keywords: Contact Lenses, Hydrophilic, Environment, Polyethylene Glycols, Water/, analysis, Humans, Humidity, Hydrogel, Regression Analysis, Research Support, Non, U, S, Gov't, Temperature
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 1988 Lippincott, Williams and Wilkins
Deposited On: 17 Feb 2006 00:00
Last Modified: 10 Aug 2011 13:21

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