Evidence map›Paper›PMID 19941140›Full record

ArticleDer Ophthalmologe : Zeitschrift der Deutschen Ophthalmologischen Gesellschaft2009

[Meibomian glands : part III. Dysfunction - argument for a discrete disease entity and as an important cause of dry eye].

E Knop, N Knop, H Brewitt, U Pleyer, P Rieck, B Seitz, F Schirra

Registry-linked trialAbstract readEnglish Abstract
PubMed Publisher
In one paragraph

Article in Der Ophthalmologe : Zeitschrift der Deutschen Ophthalmologischen Gesellschaft, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04052841 (Automated Morphological Analysis of Meibomian Glands), which is not on this map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
3.9field-weighted citation impact, top 8% 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.

NCT04052841 naunknown statusnot on this mapstarted 2020, after this paper: background citation

Automated Morphological Analysis of Meibomian Glands

TypeinterventionalSponsorZhongshan Ophthalmic Center, Sun Yat-sen UniversityRan2020 to 2023Enrolled180ConditionsMeibomian Gland DysfunctionArmsThermal pulsation, Intense pulsed light therapy, Manual warm compresses
3 · Its place in the literature

Who cites it

15 citing papers in PubMed, 44 citations in OpenAlex.

  1. Article
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  10. Chinese medical journal · 2016
    Article
  11. [Testosterone reduces the expression of keratinization-promoting genes in murine Meibomian glands].Der Ophthalmologe : Zeitschrift der Deutschen Ophthalmologischen Gesellschaft · 2013
    Article
  12. Aging and dry eye disease.Experimental gerontology · 2012
    Review
  13. Changes in gene expression in human meibomian gland dysfunction.Investigative ophthalmology & visual science · 2011
    Article
  14. Review
  15. 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

7 authors at 3 institutions in 1 country.

E KnopForschungslabor der Augenklinik, Charite - Universitätsmedizin Berlin, Campus Virchow Klinikum (CVK), Ziegelstrasse 5-9, 10117, Berlin, Deutschland. erich.knop@charite.de
N Knop
H Brewitt
U Pleyer
P Rieck
B Seitz
F Schirra
Charité - Universitätsmedizin Berlin · DEUniversitätsklinikum des Saarlandes · DEMedizinische Hochschule Hannover · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Meibomian gland dysfunction (MGD), mainly synonymous with posterior blepharitis but typically without prominent inflammatory alterations of the lid margin, is a discrete disease entity and a frequent cause of wetting deficiencies of the ocular surface leading to dry eye disease that deserves increased recognition by clinicians. The history, classification, pathology, influencing factors, diagnostics and therapy are explained and discussed. MGD is mainly based on an obstructive mechanism caused by hyperkeratinization of the excretory duct and/or increased viscosity of the secretion (meibum) with subsequent deficiency of the tear film lipid layer. MGD is influenced by the hormonal status and by chemical and mechanical noxes as well as genetic defects and it occurs more frequently in women and generally increases with age. It results in stasis of meibum inside the glands, dilatation of the ductal system and eventually in atrophy and loss of glandular tissue (gland dropout). Careful investigation of the eyelids and lid margins with eversion, if necessary, should therefore be performed in every case of a wetting defect, notably before fitting contact lenses. Particularly important is the inspection of the meibomian orifices and diagnostic expression by mild mechanical compression of the lid.

Indexed as

Models, BiologicalDry Eye SyndromesGonadal Steroid HormonesHumansLacrimal ApparatusMeibomian GlandsGonadal Steroid Hormones

Identifiers

PMID19941140
OpenAlexW1506876921

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.