Evidence map›Paper›PMID 34513236›Full record

ArticleBiomedical optics express2021

Subjective measurement of the Stiles-Crawford effect with different field sizes.

Vinay Kumar Nilagiri, Marwan Suheimat, Andrew J Lambert, Andrew Turpin, Brian Vohnsen, David A Atchison

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Biomedical optics express, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. Article
  2. Article
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

6 authors.

Vinay Kumar NilagiriInstitute of Health and Biomedical Innovation, School of Optometry and Vision Science, Queensland University of Technology, Brisbane, QLD, Australia.
Marwan SuheimatInstitute of Health and Biomedical Innovation, School of Optometry and Vision Science, Queensland University of Technology, Brisbane, QLD, Australia.
Andrew J LambertSchool of Engineering and Information Technology, The University of New South Wales, Canberra, ACT, Australia.ORCID https://orcid.org/0000-0003-0390-4446
Andrew TurpinSchool of Computing and Information Systems, The University of Melbourne, Melbourne, VIC, Australia.ORCID https://orcid.org/0000-0003-2559-8769
Brian VohnsenAdvanced Optical Imaging Group, School of Physics, University College Dublin, Dublin 4, Ireland.ORCID https://orcid.org/0000-0001-6539-9743
David A AtchisonInstitute of Health and Biomedical Innovation, School of Optometry and Vision Science, Queensland University of Technology, Brisbane, QLD, Australia.ORCID https://orcid.org/0000-0002-3099-6545

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The Stiles-Crawford effect of the first kind (SCE) is the phenomenon in which light entering the eye near the center of the pupil appears brighter than light entering near the edge. Previous investigations have found an increase in the directionality (steepness) of the effect as the testing location moves from the center of the visual field to parafoveal positions, but the effect of central field size has not been considered. The influence of field size on the SCE was investigated using a uniaxial Maxwellian system in which stimulus presentation was controlled by an active-matrix liquid crystal display. SCE directionality increased as field size increased from 0.5° to 4.7° diameter, although this was noted in four mild myopes and not in two emmetropes. The change with field size was supported by a geometric optics absorption model.

Identifiers

PMID34513236
PMCPMC8407820

What OpenQuestion holds

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Registered trials

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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.