English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/8784
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Title

Investigating sources of variability of monochromatic and transverse chromatic aberrations across eyes

AuthorsMarcos, Susana ; Burns, Stephen A.; Prieto, Pedro M.; Navarro, Rafael; Baraibar, Begoña
KeywordsAngle alpha
Corneal aberrations
Human eye
Misalignment
Optical aberrations
Optical axis
Pupil
Purkinje images
Tilt
Transverse chromatic aberration
Wavefront
Issue Date1-Dec-2001
PublisherElsevier
CitationVision Research 41(28): 3861-3871 (2001)
AbstractSchematic eye models have typically been used to explain the average monochromatic and chromatic imaging properties of the eye. Both monochromatic aberrations and transverse chromatic aberration are known to vary widely across subjects. However, to our knowledge, the ability of schematic eye models to predict these individual variations has not been tested experimentally. We used a spatially resolved refractometer to measure the monochromatic aberrations and the optical transverse chromatic aberration (oTCA) in a group of 15 eyes. By recording the 1st and 4th Purkinje images for five directions of gaze, we also estimated the tilt, misalignment of ocular surfaces (front surface of the cornea and back surface of the lens) and off-axis position of the fovea (angle alpha), as well as pupil centration. We conclude that, contrary to expectations none of those factors are major contributors to the variability in monochromatic aberrations and oTCA in this group of eyes. Simulations show that corneal curvature and corneal conicity are also unlikely to account for the observed relation between monochromatic aberrations and oTCA. Our results suggest an important contribution of corneal irregularities to those aberrations.
Description11 pages, 8 figures.-- PMID: 11738452 [PubMed].
Publisher version (URL)http://dx.doi.org/10.1016/S0042-6989(01)00133-X
URIhttp://hdl.handle.net/10261/8784
DOI10.1016/S0042-6989(01)00133-X
ISSN0042-6989
Appears in Collections:(CFMAC-IO) Artículos
Files in This Item:
There are no files associated with this item.
Show full item record
Review this work
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.