Evidence map›Paper›PMID 26364760›Full record

ArticleJournal of optometry

Visual function among commercial vehicle drivers in the central region of Ghana.

Samuel Bert Boadi-Kusi, Samuel Kyei, Frederick Afum Asare, Andrew Owusu-Ansah, Agnes Awuah, Charles Darko-Takyi

Open access · goldAbstract read
In one paragraph

Article in Journal of optometry. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 2 pooled it
0.7field-weighted citation impact, top 20% 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

9 citing papers in PubMed, 2 syntheses or guidelines pooled it, 33 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Refractive errors among commercial drivers.Indian journal of ophthalmology · 2022
    Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Refractive error and abnormal stereopsis association with road traffic accidents in Saudi Arabian truck drivers.Saudi journal of ophthalmology : official journal of the Saudi Ophthalmological Society
    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 at 2 institutions in 2 countries.

Samuel Bert Boadi-KusiDepartment of Optometry, School of Physical Sciences, University of Cape Coast, Cape Coast, Ghana; Discipline of Optometry, School of Health Sciences, University of KwaZulu-Natal, South Africa. Electronic address: sboadi-kusi@ucc.edu.gh.
Samuel KyeiDepartment of Optometry, School of Physical Sciences, University of Cape Coast, Cape Coast, Ghana; Discipline of Optometry, School of Health Sciences, University of KwaZulu-Natal, South Africa.
Frederick Afum AsareDepartment of Optometry, School of Physical Sciences, University of Cape Coast, Cape Coast, Ghana.
Andrew Owusu-AnsahDepartment of Optometry, School of Physical Sciences, University of Cape Coast, Cape Coast, Ghana.
Agnes AwuahDepartment of Optometry, School of Physical Sciences, University of Cape Coast, Cape Coast, Ghana.
Charles Darko-TakyiDepartment of Optometry, School of Physical Sciences, University of Cape Coast, Cape Coast, Ghana.
University of Cape Coast · GHUniversity of KwaZulu-Natal · ZA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimTo determine the relationship between some visual functions: colour vision defects, abnormal stereopsis, visual acuity and the occurrence of road traffic accident (RTAs) among commercial vehicle drivers in the central region of Ghana, and to assess their knowledge of these anomalies.

methodA descriptive cross-sectional study employing a multi-stage random sampling approach was conducted in the major commercial towns within the central region of Ghana. Participants were taken through a comprehensive eye examination after the administration of a structured questionnaire.

results520 male commercial vehicle drivers were enrolled for this study with a mean age of 39.23 years ±10.96 years and mean visual acuity of 0.02±0.08 logMAR. Protans were more likely to be involved in RTAs (χ(2)=6.194, p=0.034). However, there was no statistically significant association between abnormal stereopsis (OR=0.89 95% CI: 0.44-1.80, p=0.56), poor vision due to refractive error (χ(2)=3.090, p=0.388) and the occurrence of RTAs. While 86.9% were aware of abnormal stereopsis, only 45% were aware of colour vision defects. There was a statistically significant association between stereopsis anomaly and colour vision defect (r=0.371, p<0.005).

conclusionThe study found an association between protanopia and RTAs but none between stereopsis anomalies, refractive errors and the occurrence of RTAs. Drivers were less knowledgeable on colour vision defects as compared to stereopsis anomalies.

Indexed as

Automobile DrivingAccidents, TrafficAdultAgedColor Vision DefectsCross-Sectional StudiesDepth PerceptionFemaleGhanaHumansMaleMiddle AgedRefractive ErrorsVision DisordersVisual AcuityYoung AdultAccidente de tráficoCommercial driversConductores comercialesDefectos visualesFunción visualRoad traffic accidentVisual defectsVisual function

Identifiers

PMID26364760
PMCPMC4705311
OpenAlexW1674361648

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

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.