PMID: 8446373Feb 1, 1993Paper

Optical aspects of tolerances to uncorrected ocular astigmatism

Optometry and Vision Science : Official Publication of the American Academy of Optometry
W N Charman, L Voisin

Abstract

We approached the question of the visual tolerance to uncorrected astigmatism by exploring the changes in the retinal diffraction images brought about by astigmatism, as a function of spherical focus. Consideration of the Rayleigh and Maréchal wavefront criteria and of the changes in ocular modulation transfer function (MTF) broadly supports a value of 0.25 DC as a practical tolerance limit for uncorrected astigmatism. This study underlines the limitations of a geometrical optical approach to this problem in particular, and shows that the concept of the circle of least confusion may be misleading.

Citations

Dec 6, 2005·Der Ophthalmologe : Zeitschrift der Deutschen Ophthalmologischen Gesellschaft·T BöhmD T Pham
Oct 11, 2012·PloS One·Maria VinasSusana Marcos
Dec 23, 2003·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·Lawrence R StarkDavid A Atchison
Sep 8, 1998·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·J PujolV Badia
Mar 1, 1997·Vision Research·J A Jennings, W N Charman
Jul 28, 2009·Vision Research·David A AtchisonS W Fisher
Sep 15, 2004·Optometry and Vision Science : Official Publication of the American Academy of Optometry·Richard LegrasW Neil Charman
Oct 9, 2019·Optometry and Vision Science : Official Publication of the American Academy of Optometry·Neeraj K SinghPete S Kollbaum
Sep 23, 2003·Optometry and Vision Science : Official Publication of the American Academy of Optometry·John de BrabanderAntonio Benito
Nov 27, 2019·Current Opinion in Ophthalmology·Rohini R Sigireddi, Mitchell P Weikert
May 12, 2020·Investigative Ophthalmology & Visual Science·Tiong Peng YapMei Ying Boon
Oct 22, 2013·Optometry and Vision Science : Official Publication of the American Academy of Optometry·Maria VinasSusana Marcos
May 3, 2019·Investigative Ophthalmology & Visual Science·Tiong Peng YapMei Ying Boon

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