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Peripheral refraction and higher order aberrations
KTH, School of Engineering Sciences (SCI), Applied Physics, Biomedical and X-ray Physics.ORCID iD: 0000-0003-1741-5096
Johnson & Johnson Vis, R&D, Groningen, Netherlands..
KTH, School of Engineering Sciences (SCI), Applied Physics, Biomedical and X-ray Physics.ORCID iD: 0000-0002-4894-7944
2019 (English)In: Clinical and experimental optometry, ISSN 0816-4622, E-ISSN 1444-0938Article in journal (Refereed) Published
Abstract [en]

Peripheral image quality influences several aspects of human vision. Apart from off-axis visual functions, the manipulation of peripheral optical errors is widely used in myopia control interventions. This, together with recent technological advancements enabling the measurement of peripheral errors, has inspired many studies concerning off-axis optical aberrations. However, direct comparison between these studies is often not straightforward. To enable between-study comparisons and to summarise the current state of knowledge, this review presents population data analysed using a consistent approach from 16 studies on peripheral ocular optical quality (in total over 2,400 eyes). The presented data include refractive errors and higher order monochromatic aberrations expressed as Zernike co-efficients (reported in a subset of the studies) over the horizontal visual field. Additionally, modulation transfer functions, describing the monochromatic image quality, are calculated using individual wavefront data from three studies. The analysed data show that optical errors increase with increasing eccentricity as expected from theoretical modelling. Compared to emmetropes, myopes tend to have more hypermetropic relative peripheral refraction over the horizontal field and worse image quality in the near-periphery of the nasal visual field. The modulation transfer functions depend considerably on pupil shape (for angles larger than 30 degrees) and to some extent, the number of Zernike terms included. Moreover, modulation transfer functions calculated from the average Zernike co-efficients of a cohort are artificially inflated compared to the average of individual modulation transfer functions from the same cohort. The data collated in this review are important for the design of ocular corrections and the development and assessment of optical eye models.

Place, publisher, year, edition, pages
WILEY , 2019.
Keywords [en]
myopia, ocular modulation transfer function, peripheral higher order aberrations, peripheral refraction, retinal image quality
National Category
Ophthalmology
Identifiers
URN: urn:nbn:se:kth:diva-256250DOI: 10.1111/cxo.12943ISI: 000478833400001PubMedID: 31382321Scopus ID: 2-s2.0-85070724740OAI: oai:DiVA.org:kth-256250DiVA, id: diva2:1364816
Note

QC 20191022

Available from: 2019-10-22 Created: 2019-10-22 Last updated: 2020-01-09Bibliographically approved

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Romashchenko, DmitryLundström, Linda

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