Aberrations associated with rigid contact lenses
Atchison, David A. (1995) Aberrations associated with rigid contact lenses. Journal of the Optical Society of America A: Optics and Image Science, 12(10), pp. 2267-2273.
A rigid contact lens on an eye can produce levels of spherical aberration very different from those produced by a spectacle lens in front of the eye. These levels are considerably affected by contact lens surface asphericity. Change in longitudinal spherical aberration associated with aspherizing a contact lens surface is well predicted by a simple equation for change in sagittal power of the surface. Displacing an aspheric contact lens on the eye can produce considerable defocus, which is well predicted by simple equations for change in sagittal and tangential surface powers. The best refractive correction with contact lenses can be determined only by overrefraction with a patient wearing a contact lens of power and characteristics similar to that which will be prescribed. An aspheric contact lens that moves to a considerable extent on the eye will cause more unstable vision than will a spherical lens that moves to the same extent.
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|Item Type:||Journal Article|
|Additional Information:||For more information, please refer to the journal's website (see link) or contact the author. Author contact details: firstname.lastname@example.org|
|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 1995 Optical Society of America|
|Deposited On:||27 Sep 2006|
|Last Modified:||15 Jan 2009 17:12|
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