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2023 (English)In: Biomedical Optics Express, ISSN 2156-7085, Vol. 14, no 6Article in journal (Refereed) Published
Abstract [en]
A novel double-pass instrument and its data analysis method for the measurement of central and peripheral refraction is presented and validated in a group of healthy subjects. The instrument acquires in-vivo, non-cycloplegic, double-pass, through-focus images of the eye’s central and peripheral point-spread function (PSF) using an infrared laser source, a tunable lens and a CMOS camera. The through-focus images were analyzed to determine defocus and astigmatism at 0° and 30° visual field. These values were compared to those obtained with a lab-based Hartmann-Shack wavefront sensor. The two instruments provided data showing good correlation at both eccentricities, particularly in the estimation of defocus.
Place, publisher, year, edition, pages
Optica Publishing Group, 2023
National Category
Atom and Molecular Physics and Optics
Identifiers
urn:nbn:se:kth:diva-328444 (URN)10.1364/boe.489881 (DOI)001014836500007 ()37342694 (PubMedID)2-s2.0-85162035591 (Scopus ID)
Note
QC 20230612
2023-06-092023-06-092023-07-14Bibliographically approved