Evidence map›Paper›PMID 29127516›Full record

ArticleSports medicine - open2017

Vision and Visual History in Elite/Near-Elite-Level Cricketers and Rugby-League Players.

Brendan T Barrett, Jonathan C Flavell, Simon J Bennett, Alice G Cruickshank, Alex Mankowska, Julie M Harris, John G Buckley

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In one paragraph

Article in Sports medicine - open, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.2field-weighted citation impact, top 42% of its field
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

6 citing papers in PubMed, 18 citations in OpenAlex.

  1. Studies of Vision in Cricket-A Narrative Review.Vision (Basel, Switzerland) · 2023
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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

7 authors at 3 institutions in 1 country.

Brendan T BarrettSchool of Optometry and Vision Science, University of Bradford, Bradford, UK. b.t.barrett@bradford.ac.uk.
Jonathan C FlavellSchool of Optometry and Vision Science, University of Bradford, Bradford, UK.
Simon J BennettSchool of Sport and Exercise Science, Liverpool John Moores University, Liverpool, UK.
Alice G CruickshankSchool of Optometry and Vision Science, University of Bradford, Bradford, UK.
Alex MankowskaSchool of Optometry and Vision Science, University of Bradford, Bradford, UK.
Julie M HarrisSchool of Psychology and Neuroscience, University of St Andrews, St Andrews, UK.
John G BuckleySchool of Engineering, University of Bradford, Bradford, UK.
University of Bradford · GBLiverpool John Moores University · GBUniversity of St Andrews · GB

Funding

Biotechnology and Biological Sciences Research Council , BB/J016365/1Biotechnology and Biological Sciences Research Council BB/J018163/1Biotechnology and Biological Sciences Research Council BB/J018872/1
6 · The paper itself

Abstract

backgroundThe importance of optimal and/or superior vision for participation in high-level sports remains the subject of considerable clinical research interest. Here, we examine the vision and visual history of elite/near-elite cricketers and rugby-league players.

methodsStereoacuity (TNO), colour vision, and distance (with/without pinhole) and near visual acuity (VA) were measured in two cricket squads (elite/international-level, female, n = 16; near-elite, male, n = 23) and one professional rugby-league squad (male, n = 20). Refractive error was determined, and details of any correction worn and visual history were recorded.

resultsOverall, 63% had their last eye examination within 2 years. However, some had not had an eye examination for 5 years or had never had one (near-elite cricketers 30%; rugby-league players 15%; elite cricketers 6%). Comparing our results for all participants to published data for young, optimally corrected, non-sporting adults, distance VA was ~ 1 line of letters worse than expected. Adopting α = 0.01, the deficit in distance VA was significant, but only for elite cricketers (p < 0.001) (near-elite cricketers, p = 0.02; rugby-league players, p = 0.03). Near VA did not differ between subgroups or relative to published norms for young adults (p > 0.02 for all comparisons). On average, near stereoacuity was better than in young adults, but only in elite cricketers (p < 0.001; p = 0.03, near-elite cricketers; p = 0.47, rugby-league players). On-field visual issues were present in 27% of participants and mostly (in 75% of cases) comprised uncorrected ametropia. Some cricketers (near-elite 17.4%; elite 38%) wore refractive correction during play, but no rugby-league player did. Some individuals with prescribed correction choose not to wear it when playing.

conclusionsAside from near stereoacuity in elite cricketers, the basic visual abilities we measured were not better than equivalent, published data for optimally corrected adults; 20-25% exhibited sub-optimal vision, suggesting that the clearest possible vision might not be critical for participation at the highest levels in the sports of cricket or rugby league. Although vision could be improved in a sizeable proportion of our sample, the impact of correcting these, mostly subtle, refractive anomalies on playing performance is unknown.

Indexed as

AmetropiaCricketElite sportsEyeEyesightRefractive errorRugby leagueVision

Identifiers

PMID29127516
PMCPMC5681452
OpenAlexW2767121803

What OpenQuestion holds

Textmetadata
LicenceCC BY
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Registered trials

None linked

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.