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The development and application of a polysulphone contact lens dosimeter

Sydenham, Michael M., Collins, Michael J., & Hirst, Lawrence W. (1996) The development and application of a polysulphone contact lens dosimeter. In XII International Congress of Eye Reserach. Experimental Eye Reserach, 1996, Ridgefield, New Jersey.

Abstract

A method of ocular surface UV dosimetry using polysulphone contact lenses was developed to examine the potential role of the human squint mechanism in modulating the ocular-to-ambient exposure ratio (OAER). TWO types of lenses were developed, a 9 mm diameter design which was used in a simiiat fashion to polysulphone film badges, and a 12 mm. stabiiised "piggy-back" lens design which required a larger diameter PMMA cartier lens to adequalely fit on the eye. The larger diameter lens had the potential for regional dose assessment across (he entire sensing surface. A preliminary trial showed that the protective squint mechanism appeared to be responsible for limiting the OAER received by an individual. In a further 6 wearing trials, the OAER was found to be 28 9)% The temporal UV dose was lower than both the central and nasal UV dose in five of the six wearing trials. When the 'normal' squint mechanism was deliberately altered in four of the six wearing trials. little effect on the regional distribution of UV dose across the surface of the eye was observed.

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ID Code: 12215
Item Type: Conference Paper
Additional Information: For more information, please contact the author.
Additional URLs:
ISSN: 0014-4835
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) > Vision Science (111303)
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 1996 The International Society for Eye Research
Deposited On: 25 Jan 2008
Last Modified: 11 Aug 2011 00:40

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