Evidence map›Paper›PMID 33238652›Full record

ArticleJournal of clinical medicine2020

The Association between Tear Film Thickness as Measured with OCT and Symptoms and Signs of Dry Eye Disease: A Pooled Analysis of 6 Clinical Trials.

Gerhard Garhöfer, Valentin Aranha Dos Santos, Hannes Stegmann, Doreen Schmidl, Narine Adzhemian, René M Werkmeister, Leopold Schmetterer

Abstract read
In one paragraph

Article in Journal of clinical medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing 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

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

  1. Pooled it
  2. Review
  3. Article
  4. Review
  5. Article
  6. Contact lens fitting and changes in the tear film dynamics: mathematical and computational models review.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2024
    Review
  7. Article
  8. 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.

Gerhard GarhöferDepartment of Clinical Pharmacology, Medical University of Vienna, 1090 Vienna, Austria.
Valentin Aranha Dos SantosCenter for Medical Physics and Biomedical Engineering, Medical University of Vienna, 1090 Vienna, Austria.
Hannes StegmannCenter for Medical Physics and Biomedical Engineering, Medical University of Vienna, 1090 Vienna, Austria.ORCID 0000-0003-2636-0218
Doreen SchmidlDepartment of Clinical Pharmacology, Medical University of Vienna, 1090 Vienna, Austria.ORCID 0000-0001-5664-7768
Narine AdzhemianDepartment of Clinical Pharmacology, Medical University of Vienna, 1090 Vienna, Austria.
René M WerkmeisterDepartment of Clinical Pharmacology, Medical University of Vienna, 1090 Vienna, Austria.
Leopold SchmettererDepartment of Clinical Pharmacology, Medical University of Vienna, 1090 Vienna, Austria.

Funding

Christian Doppler Laboratories "Laser Development and their application in Medicine" and "Ocular Effects of Thiomers"
6 · The paper itself

Abstract

purposeTo determine the association between tear film thickness (TFT) as measured with ultra-high resolution optical coherence tomography (UHR-OCT) and signs and symptoms of dry eye disease (DED).

methodsA total of 450 eyes from 225 patients with DED from six different randomized clinical trials were included in this pooled analysis. In all subjects, TFT was measured with a custom-built UHR-OCT system. Symptoms of DED were quantified using a standardized Ocular Surface Disease Index (OSD)I questionnaire and clinical signs including tear film break up time (TFBUT) and Schirmer I test were assessed. Associations of the average TFT with OSDI, TFBUT, and Schirmer I test were calculated using a linear regression analysis.

resultsThe average TFT of the included sample (mean age, 45.0 ± 13.3 years; 65% female) was 4.2 ± 0.5 µm and the OSDI 36.2 ± 10.4. A significant negative correlation was found between TFT and OSDI (r = -0.36 to -0.31;

conclusionsThe present study demonstrates an objective measurement of TFT using a novel OCT approach for DED that correlates with symptoms and signs of DED. Our data are consistent with the idea that TFT represents the aqueous-deficient component of DED.

Indexed as

dry eye diseaseocular surface diseaseoptical coherence tomographysigns and symptomstear film thickness

Identifiers

PMID33238652
PMCPMC7700265

What OpenQuestion holds

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Registered trials

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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.