The skew ray issue in ocular aberration measurement [technical report]
Atchison, David A. (2006) The skew ray issue in ocular aberration measurement [technical report]. Optometry and Vision Science, 83(6), pp. 396-398.
I investigated the "skew ray" issue with respect to ocular aberration measurement. This arises for aberrometers that can distinguish only radial components of aberrations. Using simulations and Zernike aberrations, I found that rotationally symmetric coefficients are correctly determined but that asymmetric coefficients are underestimated. This underestimation is more pronounced as radial order of the aberrations becomes smaller and as angular dependence of aberrations becomes greater. There is also "leakage" to other orders, and errors are slightly affected by the sampling pattern. Aberrometers that can distinguish only radial components of aberrations do not provide good estimates of asymmetric aberrations.
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|Item Type:||Journal Article|
|Additional Information:||The contents of this journal can be freely accessed online via the journal’s web page (see link) 12 months after publication. For more information, please refer to the journal’s website (see link) or contact the author. Author contact details: email@example.com|
|Keywords:||aberrations, aberrometers, skew ray issue|
|Subjects:||Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > OPTOMETRY AND OPHTHALMOLOGY (111300) > Vision Science (111303)|
|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 2006 Lippincott Williams & Wilkins|
|Deposited On:||02 Oct 2007|
|Last Modified:||29 Feb 2012 23:23|
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