Evidence map›Paper›PMID 28823075›Full record

Observational studyGraefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie2017

Refractive, corneal and ocular residual astigmatism: distribution in a German population and age-dependency - the Gutenberg health study.

Alexander Karl-Georg Schuster, Norbert Pfeiffer, Andreas Schulz, René Hoehn, Katharina A Ponto, Philipp S Wild, Maria Blettner, Manfred E Beutel, Karl J Lackner, Thomas Münzel and 1 more

Abstract readMulticenter StudyObservational Study
PubMed Publisher
In one paragraph

Observational study in Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.6field-weighted citation impact, top 17% 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

15 citing papers in PubMed, 26 citations in OpenAlex.

  1. Prevalence data for total corneal astigmatism in cataract patients.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2024
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  10. Refractive, corneal, and ocular residual astigmatism: distribution in a German population and age-dependency: the Gutenberg health study.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2018
    Article
  11. Refractive, corneal, and ocular residual astigmatism: distribution in a German population and age dependency-the Gutenberg Health Study.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2018
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

11 authors at 3 institutions in 2 countries.

Alexander Karl-Georg SchusterDepartment of Ophthalmology, University Medical Center Mainz, Langenbeckstr. 1, 55131, Mainz, Germany. alexander.k.schuster@gmx.de.
Norbert PfeifferDepartment of Ophthalmology, University Medical Center Mainz, Langenbeckstr. 1, 55131, Mainz, Germany.
Andreas SchulzPreventive Cardiology and Preventive Medicine / Center for Cardiology, University Medical Center Mainz, Mainz, Germany.
René HoehnDepartment of Ophthalmology, University Medical Center Mainz, Langenbeckstr. 1, 55131, Mainz, Germany.
Katharina A PontoDepartment of Ophthalmology, University Medical Center Mainz, Langenbeckstr. 1, 55131, Mainz, Germany.
Philipp S WildPreventive Cardiology and Preventive Medicine / Center for Cardiology, University Medical Center Mainz, Mainz, Germany.
Maria BlettnerInstitute of Medical Biostatistics, Epidemiology and Informatics, University Medical Center Mainz, Mainz, Germany.
Manfred E BeutelDepartment of Psychosomatic Medicine and Psychotherapy, University Medical Center Mainz, Mainz, Germany.
Karl J LacknerInstitute of Clinical Chemistry and Laboratory Medicine, University Medical Center Mainz, Mainz, Germany.
Thomas MünzelCenter for Cardiology I, University Medical Center Mainz, Mainz, Germany.
Alireza MirshahiDepartment of Ophthalmology, University Medical Center Mainz, Langenbeckstr. 1, 55131, Mainz, Germany.
Johannes Gutenberg University Mainz · DEUniversity Medical Center of the Johannes Gutenberg University Mainz · DEUniversity Hospital of Bern · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeWorldwide, the most frequent cause of visual impairment is uncorrected refractive error. This analysis focused on the distribution and associations of refractive, corneal and ocular residual astigmatism.

methodsAs part of the Gutenberg Health study, a population-based cross-sectional study was conducted in the general population of Germany. A comprehensive ophthalmological examination including refraction, tonometry, and Scheimpflug imaging of the anterior cornea (Pachycam) was performed. In addition to the magnitude and type (with-the-rule, against-the-rule, oblique) of the refractive or corneal astigmatism, we calculated the vector components (J

resultsA total of 13,558 subjects (49% female) with a mean age of 54.0 years (range 35-74 years) were included in this study. The prevalence of refractive astigmatism (>1.0D) was 13.0% in right eyes and 12.0% in left eyes, and 85% of these subjects wore spectacles. The distribution of refractive astigmatism showed a two-peak distribution with high astigmatism for with-the-rule and against-the-rule astigmatism. The associated factors were corneal curvature, age and sex for the different astigmatisms (p < 0.001).

conclusionsWe analyzed the prevalence of different astigmatisms within a European population. We confirmed a shift with aging from with-the-rule to against-the-rule astigmatism to refractive and corneal astigmatism. Astigmatism has a large impact on visual perception; more than 85% of people with astigmatism over one diopter wore glasses for distance vision.

Indexed as

Refraction, OcularAdultAgedAge DistributionAge FactorsAstigmatismCorneaCorneal PachymetryCorneal TopographyCross-Sectional StudiesFemaleFollow-Up StudiesGermanyHumansMaleMiddle AgedAgeAstigmatismCornealDistributionEpidemiologyOcular residualRefractive

Identifiers

PMID28823075
OpenAlexW2745364272

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.