Treffer: Optical quality in a myopic population of human eyes

Title:
Optical quality in a myopic population of human eyes
Authors:
LIHUA FANG, YAN WANG, XINGDAO HE
Source:
Optik (Stuttgart). 121(22):2003-2007
Publisher Information:
Reutlingen: Elsevier, 2010.
Publication Year:
2010
Physical Description:
print, 21 ref
Original Material:
INIST-CNRS
Subject Terms:
Optics, Optique, Sciences exactes et technologie, Exact sciences and technology, Physique, Physics, Domaines classiques de la physique (y compris les applications), Fundamental areas of phenomenology (including applications), Optique, Optics, Optique géométrique, Geometrical optics, Aberrations, Formation des images et traitement optique, Imaging and optical processing, Fonctions de transfert optique et de transfert de modulation, Modulation and optical transfer functions, Aberration optique, Optical aberration, Aberración óptica, Fonction transfert modulation, Modulation transfer function, Función transferencia modulación, Front onde, Wave front, Homme, Man, Myopie, Myopia, Miopía, Oeil, Eyes, 4215F, 4230L, Fonction Zernike, Zernike function, Optical quality, Visual benefit, Wavefront aberration
Document Type:
Fachzeitschrift Article
File Description:
text
Language:
English
Author Affiliations:
Key Laboratory of Nondestructive Test (Ministry of Education), Nanchang Hangkong University, Nanchang 330063, China
Tianjin Eye Hospital, Refractive Surgery Center, Tianjin Medical University, Tianjin 300020, China
ISSN:
0030-4026
Access URL:
http://pascal-francis.inist.fr/vibad/index.php?action=search&terms=23451960
Rights:
Copyright 2015 INIST-CNRS
CC BY 4.0
Sauf mention contraire ci-dessus, le contenu de cette notice bibliographique peut être utilisé dans le cadre d’une licence CC BY 4.0 Inist-CNRS / Unless otherwise stated above, the content of this bibliographic record may be used under a CC BY 4.0 licence by Inist-CNRS / A menos que se haya señalado antes, el contenido de este registro bibliográfico puede ser utilizado al amparo de una licencia CC BY 4.0 Inist-CNRS
Notes:
Physics: optics
Accession Number:
edscal.23451960
Database:
PASCAL Archive

Weitere Informationen

An aberrometer was used to measure the monochromatic aberration of 219 eyes in a population of 113 myopic subjects. The Zernike expansion was used to describe the wavefront aberration of the human eyes. From the distribution of Zernike coefficients, the means of almost all Zernike coefficients are approximately zero, and the mean absolute values of Zernike coefficients convey the level of aberration for our study population. Based on the distribution of Zernike coefficients, the averaged optical quality was computed in different methods. The mean MTF and PSF of individual eyes represent the optical quality for a typical myopic eye. Through the calculation of the visual benefits expected from correcting Zernike modes, a large expected visual benefit can be achieved across all spatial frequencies after correcting 5 Zernike modes. Furthermore, the larger improvement of optical quality can be achieved with correcting more Zernike modes at a higher spatial frequency.