Evidence map›Paper›PMID 27268271›Full record

ArticleBMC ophthalmology2016

Biometry and visual function of a healthy cohort in Leipzig, Germany.

Maria Teresa Zocher, Jos J Rozema, Nicole Oertel, Jens Dawczynski, Peter Wiedemann, Franziska G Rauscher, EVICR.net

Registry-linked trialAbstract read
In one paragraph

Article in BMC ophthalmology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01173614 (Project Gullstrand - European Project for the Determination of Average Biometric Values of Human Eyes), which is not on this map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
–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.

NCT01173614 completednot on this map

Project Gullstrand - European Project for the Determination of Average Biometric Values of Human Eyes

TypeobservationalSponsorEuropean Vision Institute Clinical Research NetworkRan2011 to 2016Enrolled1,646ConditionsNormal Subjects, Ametropia
3 · Its place in the literature

Who cites it

11 citing papers in PubMed.

  1. Article
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  8. Observational
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  10. Ophthalmologic health status of an aging population-data from the Berlin Aging Study II (BASE-II).Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2019
    Article
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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.

Maria Teresa ZocherDepartment of Ophthalmology, Leipzig University Hospital, Liebigstrasse 10-14, 04103, Leipzig, Germany.
Jos J RozemaDepartment of Ophthalmology, Antwerp University Hospital, Wilrijkstraat 10, 2650, Edegem, Belgium.
Nicole OertelDepartment of Ophthalmology, Leipzig University Hospital, Liebigstrasse 10-14, 04103, Leipzig, Germany.
Jens DawczynskiDepartment of Ophthalmology, Leipzig University Hospital, Liebigstrasse 10-14, 04103, Leipzig, Germany.
Peter WiedemannDepartment of Ophthalmology, Leipzig University Hospital, Liebigstrasse 10-14, 04103, Leipzig, Germany.
Franziska G RauscherDepartment of Ophthalmology, Leipzig University Hospital, Liebigstrasse 10-14, 04103, Leipzig, Germany. franziska.rauscher@medizin.uni-leipzig.de.
EVICR.net

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCross-sectional survey of ocular biometry and visual function in healthy eyes across the life span of a German population aged 20 to 69 years (n = 218). Subject number in percent per age category reflected the percentage within the respective age band of the population of Leipzig, Germany.

methodsMeasurements obtained: subjective and objective refraction, best-corrected visual acuity, accommodation, contrast sensitivity, topography and pachymetry with Scheimpflug camera, axial length with non-contact partial coherence interferometry, and spectral-domain optical coherence tomography of the retina. Pearson correlation coefficients with corresponding p-values were given to present interrelationships between stature, biometric and refractive parameters or their associations with age. Two-sample T-tests were used to calculate gender differences. The area under the logarithmic contrast sensitivity function (AULCSF) was calculated for the analysis of contrast sensitivity as a single figure across a range of spatial frequencies.

resultsThe results of axial length (AL), anterior chamber depth (ACD) and anterior chamber volume (ACV) differed as a function of the age of the participants (rho (p value): AL -0.19 (0.006), ACD -0.56 (< 0.001), ACV-0.52 (< 0.001)). Longer eyes had deeper ACD (AL:ACD 0.62 (< 0.001), greater ACV (AL:ACV 0.65 (< 0.001) and steeper corneal radii (AL:R1ant; R2ant; R1post; R2post 0.40; 0.35; 0.36; 0.36 (all with (< 0.001)). Spherical equivalent was associated with age (towards hyperopia: 0.34 (< 0.001)), AL (-0.66 (< 0.001)), ACD (-0.52 (< 0.001)) and ACV (-0.46 (< 0.001)). Accommodation was found lower for older subjects (negative association with age, r = -0.82 (< 0.001)) and contrast sensitivity presented with smaller values for older ages (AULCSF -0.38, (< 0.001)), no change of retinal thickness with age. 58 % of the study cohort presented with a change of refractive correction above ±0.50 D in one or both eyes (64 % of these were habitual spectacle wearers), need for improvement was present in the young age-group and for older subjects with increasing age.

conclusionBiometrical data of healthy German eyes, stratified by age, gender and refractive status, enabled cross-comparison of all parameters, providing an important reference database for future patient-based research and specific in-depth investigations of biometric data in epidemiological research.

trial registrationClinicalTrials.gov # NCT01173614 July 28, 2010.

Indexed as

BiometryOcular Physiological PhenomenaAccommodation, OcularAdultAgedAgingAnterior ChamberAxial Length, EyeContrast SensitivityCorneal TopographyCross-Sectional StudiesFemaleGermanyHumansLens, CrystallineMaleCross sectionDioptric distanceGullstrandOcular biometryVisual function

Identifiers

PMID27268271
PMCPMC4895813

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Registered trials

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.