The effect of refractive error on optokinetic nystagmus

Subjective refraction is the gold-standard for prescribing refractive correction, but its accuracy is limited by patient’s subjective judgment about their clarity of vision. We asked if an involuntary eye movement, optokinetic nystagmus (OKN), could serve as an objective measure of visual-clarity, s...

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Bibliographic Details
Published in:Scientific reports 2020-11, Vol.10 (1), p.20062-20062, Article 20062
Main Authors: Doustkouhi, Soheil M., Turnbull, Philip R. K., Dakin, Steven C.
Format: Article
Language:English
Subjects:
631/378/3917
692/1807/1482
Humanities and Social Sciences
multidisciplinary
Science
Science (multidisciplinary)
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Summary:Subjective refraction is the gold-standard for prescribing refractive correction, but its accuracy is limited by patient’s subjective judgment about their clarity of vision. We asked if an involuntary eye movement, optokinetic nystagmus (OKN), could serve as an objective measure of visual-clarity, specifically measuring the dependence of OKN—elicited by drifting spatial-frequency filtered noise—on mean spherical equivalent (MSE) refractive error. In Experiment 1 we quantified OKN score —a measure of consistency with stimulus-direction—for participants with different MSEs. Estimates of MSE based on OKN scores correlate well with estimates of MSE made using autorefraction ( r  = 0.878, p  
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-020-76865-x