The Stiles-Crawford effect and subjective meausurement of aberrations

Atchison, David A. & Scott, Dion H. (2002) The Stiles-Crawford effect and subjective meausurement of aberrations. Vision Research, 42(9), pp. 1089-1102.

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We considered the influence that the Stiles–Crawford effect (SCE) has on the measurement of subjective monochromatic and transverse aberration measurements. The SCE was measured with a two channel Maxwellian-viewing system. Transverse aberrations were measured using a vernier alignment technique in three subjects, with the natural SCE operating, with the SCE neutralised by filters optically conjugate with the eye’s pupil, and for one subject with filters that shifted the SCE by more than 2 mm. As pupil diameter increased from 1 to 5 mm diameter, without the filters the slope of the transverse aberration versus position in the pupil decreased, e.g. for chromatic aberration this decreased by approximately 90%. The filters had little influence on transverse aberration. The results indicate that subjects do not use the centroid of the image of a blurred line target for alignment, but may rely very much on other cues.

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ID Code: 5440
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:
Keywords: Filters, Subjective transverse aberration, Optical quality of the human eye, Stiles–Crawford effect
DOI: 10.1016/S0042-6989(02)00028-7
ISSN: 0042-6989
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 2002 Elsevier
Deposited On: 14 Nov 2006 00:00
Last Modified: 15 Jan 2009 07:15

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