Evidence map›Paper›PMID 32107693›Full record

SynthesisInternational ophthalmology2020

The prevalence of refractive errors in the Middle East: a systematic review and meta-analysis.

Fahimeh Khoshhal, Hassan Hashemi, Elham Hooshmand, Mohammad Saatchi, Abbasali Yekta, Mohamadreza Aghamirsalim, Hadi Ostadimoghaddam, Mehdi Khabazkhoob

Open access · hybridAbstract readMeta-AnalysisSystematic Review
PubMed Publisher
In one paragraph

Synthesis in International ophthalmology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 2 pooled it
6.1field-weighted citation impact, top 3% 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

23 citing papers in PubMed, 2 syntheses or guidelines pooled it, 63 citations in OpenAlex.

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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

8 authors at 7 institutions in 1 country.

Fahimeh KhoshhalDepartment of Pediatrics, Dezful University of Medical Sciences, Dezful, Iran.
Hassan HashemiNoor Research Center for Ophthalmic Epidemiology, Noor Eye Hospital, Tehran, Iran. hhashemi@noorvision.com.
Elham HooshmandIranian Research Center on Aging, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran.
Mohammad SaatchiDepartment of Epidemiology, School of Health, Tehran University of Medical Sciences, Tehran, Iran.
Abbasali YektaDepartment of Optometry, School of Paramedical Sciences, Mashhad University of Medical Sciences, Mashhad, Iran.
Mohamadreza AghamirsalimEye Research Center, Rassoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran.
Hadi OstadimoghaddamRefractive Errors Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
Mehdi KhabazkhoobDepartment of Medical Surgical Nursing, School of Nursing and Midwifery, Shahid Beheshti University of Medical Sciences, Tehran, Iran.ORCID http://orcid.org/0000-0003-0801-8793
Mashhad University of Medical Sciences · IRDezful University of Medical Sciences · IRIran University of Medical Sciences · IRNoor Eye Hospital · IRShahid Beheshti University of Medical Sciences · IRTehran University of Medical Sciences · IRUniversity of Social Welfare and Rehabilitation Sciences · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe purpose of the present study was to evaluate the prevalence of refractive errors in the Middle East region.

methodsIn this meta-analysis, a structured strategy was applied to search databases PubMed, Web of Science, Scopus, and Google Scholar, databases as well as the reference lists of the selected articles to identify cross-sectional studies assessing the prevalence of refractive errors in the Middle East region until September 2019. The outcome measure was the prevalence of refractive errors, including myopia, hyperopia, and astigmatism, in two age groups of ≤ 15 years and > 15 years. The study results were combined using a random effects model at a confidence level of 95%.

resultsThe prevalence of myopia, hyperopia, and astigmatism was 4% (95% CI 4, 5), 8% (95% CI 6, 10), and 15% (95% CI 10, 19) in people less than or equal to 15 years and 30% (95% CI 25, 34), 21% (95% CI 15, 28), and 24% (95% CI 16, 31) in subjects over 15 years, respectively. The prevalence of myopia, hyperopia, and astigmatism was 3.5%, 12.4%, and 9.0% in male and 4.2%, 13.1%, and 9.9% in female subjects aged ≤ 15 years, respectively. In subjects aged > 15 years, the prevalence was 31.7%, 14.5%, and 31.5% in males and 31.9%, 11.2%, and 31% in females, respectively.

conclusionThe prevalence of hyperopia is relatively high in Middle Eastern children, while the prevalence of myopia is higher in adults in this region. It seems that astigmatism is not a serious refractive problem in this region compared to the rest of the world.

Indexed as

Urban PopulationVisual AcuityAge DistributionHumansMiddle EastPrevalenceRefractive ErrorsSex DistributionAstigmatismHyperopiaMeta-analysisMiddle EastMyopiaRefractive errorSystematic review

Identifiers

PMID32107693
OpenAlexW3007695195

What OpenQuestion holds

Textmetadata
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.