Evidence map›Paper›PMID 42460371›Full record

ArticleBiomedical optics express2026

Proto-clinical optoretinography dependence on temporal and spatial resolution.

Arman Athwal, Ringo Ng, Ayoub Faraji, Yifan Jian, Jem Love, Thomas Smart, Mohammad Shahidul Islam, Myeong Jin Ju, Marinko V Sarunic

Abstract read
In one paragraph

Article in Biomedical optics express, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Arman AthwalDepartment of Medical Physics and Biomedical Engineering, University College London, London WC1E 6BT, United Kingdom.ORCID https://orcid.org/0009-0007-2706-9138
Ringo NgCasey Eye Institute, Oregon Health & Science University, Portland, OR 97239, USA.
Ayoub FarajiInstitute of Ophthalmology, University College London, London EC1V 9EL, United Kingdom.
Yifan JianCasey Eye Institute, Oregon Health & Science University, Portland, OR 97239, USA.
Jem LoveDepartment of Medical Physics and Biomedical Engineering, University College London, London WC1E 6BT, United Kingdom.
Thomas SmartInstitute of Ophthalmology, University College London, London EC1V 9EL, United Kingdom.
Mohammad Shahidul IslamSchool of Biomedical Engineering, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada.
Myeong Jin JuSchool of Biomedical Engineering, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada.ORCID https://orcid.org/0000-0002-4907-3732
Marinko V SarunicDepartment of Medical Physics and Biomedical Engineering, University College London, London WC1E 6BT, United Kingdom.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Optoretinography (ORG) enables non-invasive measurement of stimulus-evoked photoreceptor deformation using phase-sensitive optical coherence tomography (OCT). In this study, we evaluated how lateral resolution, acquisition speed, and spatial and inter-trial averaging influence velocity-based phase ORG measured with a raster-scanning spectral-domain OCT platform configured to resemble clinically realistic hardware. Seven healthy eyes were imaged while varying beam diameter (1.6-4.8 mm), B-scan rate (400-800 Hz), and averaging strategies. The characteristic biphasic response, a rapid contraction followed by slower elongation, was consistently observed across all conditions. Increasing NA improved structural cone visibility but did not proportionally enhance averaged ORG metrics, while moderate NA often yielded more stable signals. Higher acquisition speeds sharpened the measured contraction dynamics but reduced the signal-to-noise ratio due to increased phase noise. Both spatial and trial averaging substantially improved SNR. These findings demonstrate that repeatable phase-based ORGs can be achieved without cellular resolution or ultrahigh scan rates, and provide practical guidance for implementing proto-clinical ORG on conventional OCT systems.

Identifiers

PMID42460371
PMCPMC13372378

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.