Treffer: The aberration and the modulation transfer function in LASEK and LASIK: Pupil size dependence

Title:
The aberration and the modulation transfer function in LASEK and LASIK: Pupil size dependence
Authors:
WEI WANG, YAN WANG, KANXING ZHAO
Source:
Optik (Stuttgart). 121(6):500-505
Publisher Information:
Reutlingen: Elsevier, 2010.
Publication Year:
2010
Physical Description:
print, 28 ref
Original Material:
INIST-CNRS
Subject Terms:
Optics, Optique, Sciences exactes et technologie, Exact sciences and technology, Physique, Physics, Generalites, General, Instruments, appareillage, composants et techniques communs à plusieurs branches de la physique et de l'astronomie, Instruments, apparatus, components and techniques common to several branches of physics and astronomy, Techniques et équipements généraux, General equipment and techniques, Capteurs (chimiques, optiques, électriques, de mouvement, de gaz, etc.); télédétection, Sensors (chemical, optical, electrical, movement, gas, etc.); remote sensing, 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, Lasers, Lasers à gaz, incluant les lasers à excimère et les lasers à vapeur métallique, Gas lasers including excimer and metal-vapor lasers, Aberration optique, Optical aberration, Aberración óptica, Analyseur front onde, Wavefront sensors, Application médicale laser, Laser applications in medicine, Chirurgie laser, Laser surgery, Fonction transfert modulation, Modulation transfer function, Función transferencia modulación, Front onde, Wave front, Laser excimère, Excimer lasers, Laser gaz, Gas lasers, Oeil, Eyes, Optique adaptative, Adaptive optics, 0707D, 4215F, 4230L, 4255L, 4262B, Aberration, LASEK, LASIK, Modulation transfer function (MTF)
Document Type:
Fachzeitschrift Article
File Description:
text
Language:
English
Author Affiliations:
Department of Physics, Jinin University, Shandong Province 273155, China
Refractive Surgery Center, Tianjin Eye Hospital & Institute, Tianjin Medical University, Tianjin 300020, China
ISSN:
0030-4026
Access URL:
http://pascal-francis.inist.fr/vibad/index.php?action=search&terms=22758980
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:
Metrology

Physics: optics
Accession Number:
edscal.22758980
Database:
PASCAL Archive

Weitere Informationen

The wave-front aberrations on the postoperative eyes with two different type of excimer laser surgery have been measured by a Hartmann-Shack wave-front sensor. We have calculated the aberrations for both 3 and 6 mm pupils, and with which to acquire the MTF of the eye. There are no significant differences in wave-front aberrations postoperatively (P>0.05) for 3mm pupil size, but with 6mm pupil, LASIK-treated eyes exhibit significant higher aberrations than LASEK-treated eyes for 4th and 5th-order aberrations. For individual Zernike terms, there are significant difference in C33, C-44, and C04. The MTF for 6 mm pupil is much lower than those for 3 mm pupil across all spatial frequencies. The LASEK curve shows higher than that with LASIK at spatial frequencies less than 60 c/d, which means that the optical quality in LASEK-treated eyes showed better than in LASIK-treated eyes. © 2008 Elsevier GmbH. All rights reserved.