Evidence map›Paper›PMID 30871506›Full record

ArticleBMC ophthalmology2019

Objective vision screening using PlusoptiX for children aged 3-11 years in rural Turkey.

Silay Canturk Ugurbas, Numan Kucuk, Irem Isik, Atilla Alpay, Cagatay Buyukuysal, Suat Hayri Ugurbas

Abstract read
In one paragraph

Article in BMC ophthalmology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
–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

12 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
  4. Visual profiling and vision screening of preschool children in Greenland.International journal of circumpolar health · 2025
    Article
  5. Review
  6. Article
  7. Validation of the PlusOptix S12C for detecting amblyopia risk factors in a tertiary care young paediatric population.Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) · 2025
    Observational
  8. Article
  9. Article
  10. Article
  11. 2020 Evaluation of Portable Vision Screening Instruments.The Yale journal of biology and medicine · 2021
    Article
  12. 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.

Silay Canturk UgurbasDepartment of Ophthalmology, Faculty of Medicine, Zonguldak Bulent Ecevit University, Esenkoy-Kozlu, 67600, Zonguldak, Turkey. silaycanturk@gmail.com.ORCID http://orcid.org/0000-0002-6288-0467
Numan KucukDepartment of Ophthalmology, Faculty of Medicine, Zonguldak Bulent Ecevit University, Esenkoy-Kozlu, 67600, Zonguldak, Turkey.
Irem IsikDepartment of Ophthalmology, Faculty of Medicine, Zonguldak Bulent Ecevit University, Esenkoy-Kozlu, 67600, Zonguldak, Turkey.
Atilla AlpayDepartment of Ophthalmology, Faculty of Medicine, Zonguldak Bulent Ecevit University, Esenkoy-Kozlu, 67600, Zonguldak, Turkey.
Cagatay BuyukuysalDepartment of Biostatistics, Faculty of Medicine, Zonguldak Bulent Ecevit University, Esenkoy-Kozlu, Zonguldak, 67600, Turkey.
Suat Hayri UgurbasDepartment of Ophthalmology, Faculty of Medicine, Zonguldak Bulent Ecevit University, Esenkoy-Kozlu, 67600, Zonguldak, Turkey.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThis population based cross sectional study was conducted to detect amblyopia risk factors and myopia in a rural district of Northwestern Turkey by using PlusoptiX S12R (Photoscreener PlusoptiX Inc., Nuremberg, Germany).

methodsChildren from 38 rural schools in Caycuma district of Zonguldak Turkey underwent vision screening in their school using PlusoptiX S12 photoscreener. Data were analyzed using the factory default level 5 referral criteria targeting 80% sensitivity and 95% specificity. Referral, unable readings, and positive predictive value (PPV) were reported.

resultsData from 2846 children were analyzed. Mean age was 7.9 years (±0.8) (range 36 months to 11 years). Three hundred ten (11%) were referred of whom 32% were read as 'unable'. 150 children (48% of the referred) received a gold standard examination. Positive predictive value of PlusoptiX was 69%. PPV was 83% when unable readings were excluded. 93 children with amblyopia risk factors were identified. Only 26% (n = 25) had received glasses priorly. 49 children had amblyopia of whom 33 were newly diagnosed.

conclusionsPlusoptiX showed a reasonable level of positive predictive value in community setting and the device could be a useful tool for vision screening in preschoolers and schoolers. We found most of the amblyogenic refractive errors were underdiagnosed in rural school children leading to a call for action on vision screening.

Indexed as

AmblyopiaChildChild, PreschoolCross-Sectional StudiesFemaleHumansMyopiaPredictive Value of TestsRisk FactorsSensitivity and SpecificityTurkeyVision ScreeningAmblyopiaAmblyopia risk factorsPhotoscreeningPlusoptixVision screening

Identifiers

PMID30871506
PMCPMC6419461

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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.