ArticleOphthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists)2026
Assessing Peripheral Focus in Myopes and Non-myopes: Introducing "Depth-of-refraction".
Article in Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Optical isoplanatic patch size across the visual field as a function of wavelength, pupil size, and accommodation in emmetropic and myopic eyes.Biomedical optics express · 2026Article
- Longitudinal changes in retinal image quality in school-aged children.Biomedical optics express · 2026Article
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6 authors.
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Abstract
purposePeripheral image quality is of high relevance to myopia research, yet peripheral refraction is difficult to define due to aberrations affecting the depth-of-focus. This study investigated the peripheral image quality (±25° horizontal field) using three different image quality metrics, with added sphero-cylindrical wavefronts to find the best correction.
methodsNineteen adults (9 myopes, 10 emmetropes) and 33 children (5 myopes, 28 non-myopes) were measured using a dual-angle wavefront aberrometer as part of the Stockholm Myopia Study. The optical image quality was calculated from the wavefronts, for 10,000 different sphero-cylindrical corrections around the 2nd-order Zernike refraction, to find the best correction as well as the range of corrections with similar image quality ("depth-of-refraction").
resultsOverall, the peripheral best focus was not distinct, with a large depth-of-refraction. Emmetropes/non-myopes had larger peripheral depth-of-refraction than myopes (mean values of 2.69 and 1.74 D, respectively (Strehl ratio metric)). For some subjects, this span of corrections was of a multifocal character. The prevalence of multifocality depended on the image quality metric but was generally more common in emmetropes/non-myopes than in myopes.
conclusionsThe peripheral visual field does not always have a clear best focus and can show multifocal properties in some individuals, with different corrections yielding similar image quality. As emmetropes/non-myopes had more multifocality and larger depth-of-refraction than myopes, this indicates that inherent peripheral optical properties can play a role in myopia development.
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