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Parafoveal and Perifoveal Accommodation Response to Defocus Changes Induced by a Tunable Lens
Intel Ireland, Leixlip Campus, Kildare W23 CX68, Ireland.;Univ Coll Dublin, Sch Phys, Adv Opt Imaging Grp, Dublin D04 V1W8, Ireland..
KTH, School of Engineering Sciences (SCI), Applied Physics, Biomedical and X-ray Physics. 2Eyes Vis SL, Madrid 28760, Spain..ORCID iD: 0000-0003-0875-3325
KTH, School of Engineering Sciences (SCI), Applied Physics, Biomedical and X-ray Physics. Johnson & Johnson Vis, R&D, NL-9728 NX Groningen, Netherlands..ORCID iD: 0000-0003-1741-5096
KTH, School of Engineering Sciences (SCI), Applied Physics, Biomedical and X-ray Physics.ORCID iD: 0000-0002-4894-7944
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2023 (English)In: Applied Sciences, E-ISSN 2076-3417, Vol. 13, no 15, p. 8645-, article id 8645Article in journal (Refereed) Published
Abstract [en]

The accommodative response of the human eye is predominantly driven by foveal vision, but reacts also to off-foveal stimuli. Here, we report on monocular accommodation measurements using parafoveal and perifoveal annular stimuli centered around the fovea and extending up to 8 & DEG; radial eccentricity for young emmetropic and myopic subjects. The stimuli were presented through a sequence of random defocus step changes induced by a pupil-conjugated tunable lens. A Hartmann-Shack wavefront sensor with an infrared beacon was used to measure real-time changes in ocular aberrations up to and including the fourth radial order across a 3 mm pupil at 20 Hz. Our findings show a significant reduction in accommodative response with increased radial eccentricity.

Place, publisher, year, edition, pages
MDPI AG , 2023. Vol. 13, no 15, p. 8645-, article id 8645
Keywords [en]
accommodation, sign of defocus, aberrations, wavefront sensor, tunable lens, parafovea, perifovea, emmetropization, myopia
National Category
Ophthalmology
Identifiers
URN: urn:nbn:se:kth:diva-334747DOI: 10.3390/app13158645ISI: 001045414600001Scopus ID: 2-s2.0-85167890802OAI: oai:DiVA.org:kth-334747DiVA, id: diva2:1791151
Note

QC 20230824

Available from: 2023-08-24 Created: 2023-08-24 Last updated: 2023-08-24Bibliographically approved

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Papadogiannis, PetrosRomashchenko, DmitryLundström, Linda

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