Changes of ocular aberration with accommodation - 02/09/11
Abstract |
Purpose |
To study the effect of accommodation on ocular aberrations.
Design |
Observational case series.
Methods |
The ocular aberrations in 33 eyes of 33 young adults were measured with a Hartmann–Shack wavefront aberrometer before and during 3 diopters of accommodation.
Results |
The root mean square values of wavefront error did not change for a 4-mm and a 6-mm zone; however, spherical aberration changed significantly toward negativity for both the 4-mm zone (P < .001) and 6-mm zone (P = .022).
Conclusions |
During accommodation, the significant change in spherical aberration occurs without a change of image quality. Therefore, for customized aberration, it may not be advantageous to eliminate the physiologic spherical aberration for far vision.
Le texte complet de cet article est disponible en PDF.Vol 134 - N° 6
P. 924-926 - décembre 2002 Retour au numéroBienvenue sur EM-consulte, la référence des professionnels de santé.
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