Dynamic accommodation response in the presence of astigmatism

Stark, Lawrence R., Strang, Niall C., & Atchison, David A. (2003) Dynamic accommodation response in the presence of astigmatism. Journal of the Optical Society of America A: Optics and Image Science, 20(12), pp. 2228-2236.


It has been suggested that in the presence of astigmatism some individuals make cyclic changes in focus over the astigmatic interval to obtain better visual performance. The aim in the present study was to identify such cyclic accommodative behavior and to characterize the variability of the response in the presence of astigmatism. The dynamic accommodation response in the presence of induced astigmatism was recorded objectively with an infrared optometer in seven young adults. Astigmatism led directly to increased accommodative variability in certain individuals. In two of seven participants there was evidence for aperiodic cyclic accommodative responses between different portions of the astigmatic interval. However, the amplitude of these tracking responses was much smaller than the astigmatic interval.

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14 citations in Web of Science®

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ID Code: 5481
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: d.atchison@qut.edu.au
Additional URLs:
ISSN: 1520-8532
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 2003 Optical Society of America
Deposited On: 17 Nov 2006 00:00
Last Modified: 29 Feb 2012 13:00

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