Corneal thickness changes during scleral lens wear: Effect of gas permeability

Mountford, John A., Carkeet, Nicole, & Carney, Leo G. (1994) Corneal thickness changes during scleral lens wear: Effect of gas permeability. International Contact Lens Clinic, 21, pp. 19-22.


The compatabillity of scleral lens wear with the physiological requirements of the cornea was assessed by measuring corneal thickness changes. Lenses made of either poly(methyl methacralate) (PMMA) (effectively non-oxygen permeable) or itaflourocon B (equalens II) material (oxygen permeability of 121 x 10-11cm2 ml O2/sec ml mmHg) were directly compared by fitting one lens type to each eye of eight subjects. The rate of corneal thickness increase was 0.98 +/- 3.33 microns/hour for gas permeable lenses and 14.84 +/- 14.93 microns/hour for PMMA lenses. this difference was statistically significant (p= 0.039)

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ID Code: 3155
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: Scleral contact lens, haptic contact lens, oxygen permeability, corneal swelling
ISSN: 0892-8967
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 1994 Elsevier
Deposited On: 30 Jan 2006 00:00
Last Modified: 15 Jan 2009 06:54

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