Theoretical Effect of Refractive Error and Accommodation on Longitudinal Chromatic Aberration of the Human Eye
Atchison, David A., Smith, George, & Waterworth, Michael D. (1993) Theoretical Effect of Refractive Error and Accommodation on Longitudinal Chromatic Aberration of the Human Eye. Optometry and Vision Science, 70(9), pp. 716-722.
Simple formulae based on reduced eyes have been developed to predict the variation in longitudinal chromatic aberration with variation in ametropia or accommodation. Two formulae were developed, one for axial ametropia and one for refractive ametropia. The latter also served as a model for accommodation. The results using the formulae are in close agreement with results obtained using raytracing through more sophisticated models. Combining the results of different methods gives the following predictions of change in chromatic difference of focus, between wavelengths of 400 and 700 nm, with change in each dioptre of refractive error or accommodation: axial ametropia 0.012 to 0.017 D (0.6 to 0.9%), refractive ametropia 0.05 D (2.2 to 2.4%), and accommodation 0.04 to 0.05 D (2.1 to 2.6%). The chromatic aberration effects of correcting lenses with low dispersion are intermediate in effect and opposite in sign to the effects of corresponding degrees of axial ametropia and refractive ametropia.
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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:||accommodation, ametropia, axial ametropia, chromatic aberration, chromatic difference of focus, longitudinal chromatic aberration, refractive ametropia, refractive error, schematic eye|
|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|
|Copyright Owner:||Copyright 1993 Lippincott Williams & Wilkins|
|Deposited On:||28 Sep 2006|
|Last Modified:||15 Jan 2009 17:12|
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