Change search
ReferencesLink to record
Permanent link

Direct link
Clinical importance of spherical and chromatic aberration on the accommodative response in contact lens wear
KTH, School of Engineering Sciences (SCI), Applied Physics, Biomedical and X-ray Physics.
Show others and affiliations
2011 (English)In: Journal of Modern Optics, ISSN 0950-0340, E-ISSN 1362-3044, Vol. 58, no 19-20, 1696-1702 p.Article in journal (Refereed) Published
Abstract [en]

The aim of this study was to evaluate the accommodation response under both mono-and polychromatic light while varying the amount of spherical aberration. It is thought that chromatic and spherical aberrations are directional cues for the accommodative system and could affect response time, velocity or lag. Spherical aberration is often eliminated in modern contact lenses in order to enhance image quality in the unaccommodated eye. This study was divided into two parts. The first part was done to evaluate the amount of spherical and other Zernike aberrations in the unaccommodated eye when uncorrected and with two types of correction (trial lens and spherical-aberration controlled contact lens) and the second part evaluated the dynamic accommodation responses obtained when wearing each of the corrections under polychromatic and monochromatic conditions. Measurements of accommodation showed no significant differences in time, velocity and lag of accommodation after decreasing the spherical aberration with a contact lens, neither in monochromatic nor polychromatic light. It is unlikely that small to normal changes of spherical aberration in white light or monochromatic mid-spectral light affect directional cues for the accommodative system, not in white light or mid-spectral monochromatic light, since the accommodative response did not show any change.

Place, publisher, year, edition, pages
2011. Vol. 58, no 19-20, 1696-1702 p.
Keyword [en]
spherical aberration, accommodation, response, lag, contact lenses
National Category
URN: urn:nbn:se:kth:diva-55273DOI: 10.1080/09500340.2011.565374ISI: 000297690900004ScopusID: 2-s2.0-84856929386OAI: diva2:471221
QC 20120102Available from: 2012-01-02 Created: 2012-01-02 Last updated: 2012-01-02Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopus

Search in DiVA

By author/editor
Rosén, RobertUnsbo, Peter
By organisation
Biomedical and X-ray Physics
In the same journal
Journal of Modern Optics

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 41 hits
ReferencesLink to record
Permanent link

Direct link