Rigid lenses: the pump is still alive and well

Ranft, James R., Hill, Richard M., & Carney, Leo G. (1989) Rigid lenses: the pump is still alive and well. Contact Lens Spectrum, 4(11), pp. 39-41.

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With the continuing advancement of rigid gas permeable lenses, not much is heard about the traditional tear pump anymore (the bulk flow movment of tears and gases driven by lid action on the lens). The decline of edema with increasing Dk's has markedly reduced the fitters dependance on this mechanism as the sole source of corneal oxygen, yet, have the pumps benefits entirely disappeared What portion of the corneas oxygen may still be derived by this mechanical (pump) means, and what other benefits do rigid lens sytems accrue through such bulk-flow exchange.

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ID Code: 3298
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: l.carney@qut.edu.au
Additional URLs:
ISSN: 0885-9175
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 1989 Lippincott Williams & Wilkins
Deposited On: 08 Feb 2006 00:00
Last Modified: 09 Jun 2010 12:30

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