Evidence map›Paper›PMID 27138739›Full record

ArticleInvestigative ophthalmology & visual science2016

ω-3 Tear Film Lipids Correlate With Clinical Measures of Dry Eye.

Scott D Walter, Karsten Gronert, Allison L McClellan, Roy C Levitt, Konstantinos D Sarantopoulos, Anat Galor

Open access · goldAbstract read
In one paragraph

Article in Investigative ophthalmology & visual science, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed, 3 pooled it
9.1field-weighted citation impact, top 2% 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

36 citing papers in PubMed, 3 syntheses or guidelines pooled it, 73 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Omega-3 and omega-6 polyunsaturated fatty acids for dry eye disease.The Cochrane database of systematic reviews · 2019
    Pooled it
  4. Article
  5. Translating Biomarker Discovery: From Bench to Bedside in Dry Eye Disease.International journal of molecular sciences · 2025
    Review
  6. Review
  7. Article
  8. Review
  9. Review
  10. A Water-Free Omega-3 Fatty Acid Eye Drop Formulation for the Treatment of Evaporative Dry Eye Disease: A Prospective, Multicenter Noninterventional Study.Journal of ocular pharmacology and therapeutics : the official journal of the Association for Ocular Pharmacology and Therapeutics · 2022
    Observational
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  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. 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

6 authors at 3 institutions in 1 country.

Scott D WalterBascom Palmer Eye Institute, Department of Opthamology, University of Miami, Miami, Florida, United States.
Karsten GronertSchool of Optometry, University of California, Berkeley, California, United States.
Allison L McClellanDepartment of Surgical Services, Miami Veterans Administration Medical Center, Miami, Florida, United States.
Roy C LevittDepartment of Anesthesiology, Miami Veterans Administration Medical Center, Miami, Florida, United States 5John P. Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, Florida, United States 6John T Macdonald Foundat.
Konstantinos D SarantopoulosDepartment of Anesthesiology, Miami Veterans Administration Medical Center, Miami, Florida, United States 6John T Macdonald Foundation Department of Human Genetics, University of Miami Miller School of Medicine, Miami, Florida, United States.
Anat GalorBascom Palmer Eye Institute, Department of Opthamology, University of Miami, Miami, Florida, United States 3Department of Surgical Services, Miami Veterans Administration Medical Center, Miami, Florida, United States.
University of Miami · USUnited States Department of Veterans Affairs · USUniversity of California, Berkeley · US

Funding

Shared Equipment ModuleP30EY014801 · NEI · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI Abigail S Hackam · 2004 to 2026
$12.2M
CA8 Variants: New Mechanisms Underlying Transitions to Persistent Pain SyndromesR01DE022903 · NIDCR · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI LEVITT, ROY C., MARTIN, EDEN R. · 2012 to 2016
$2.5M
Dry Eye and MicroenvironmentR01EY026174 · NEI · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI GALOR, ANAT, KUMAR, NARESH · 2016 to 2020
$1.9M
Regulatory Tissue Polymorphonuclear Leukocytes Determinants of Ocular Immune ResponsesR01EY026082 · NEI · UNIVERSITY OF CALIFORNIA BERKELEY · PI GRONERT, KARSTEN · 2016 to 2019
$1.5M
Sex-specific Regulation of Acute Inflammation and ResolutionR01EY022208 · NEI · UNIVERSITY OF CALIFORNIA BERKELEY · PI GRONERT, KARSTEN · 2012 to 2015
$1.5M
NEUROPATHIC PAIN: A CRITICAL MISSING PIECE IN DRY EYE?I01CX001089 · VA · MIAMI VA HEALTH CARE SYSTEM · PI GALOR, ANAT · 2016 to 2019
–
CSRD VA I01 CX001089NEI NIH HHS P30 EY014801NEI NIH HHS R01 EY022208NEI NIH HHS R01 EY026082NEI NIH HHS R01 EY026174NIDCR NIH HHS R01 DE022903
6 · The paper itself

Abstract

purposeω-3 and ω-6 polyunsaturated fatty acids modulate inflammatory processes throughout the body through distinct classes of lipid mediators that possess both proinflammatory and proresolving properties. The purpose of this cross-sectional study was to explore the relationship between lipid profiles in human tears and dry eye (DE) symptoms and signs.

methodsForty-one patients with normal eyelid and corneal anatomy were prospectively recruited from a Veterans Administration Hospital over 18 months. Symptoms and signs of DE were assessed, and tear samples was analyzed by mass spectrometry-based lipidomics. Statistical analyses comparing the relationship between tear film lipids and DE included Pearson/Spearman correlations and t-tests.

resultsArachidonic acid (AA), docosahexaenoic acid (DHA), and eicosapentaenoic acid (EPA) were present in more than 90% of tear film samples. The ratio of ω-6 (AA) to ω-3 (DHA+EPA) fatty acids was correlated with multiple measures of tear film dysfunction (tear breakup time, Schirmer 2 scores, and corneal staining; all P < 0.05). Arachidonic acid-derived prostaglandin E2 was detected in the majority of samples and correlated with low tear osmolarity, meibomian gland plugging, and corneal staining.

conclusionsBoth ω-3 and ω-6 lipid circuits are activated in the human tear film. The ratio of ω-6:ω-3 tear lipids is elevated in DE patients in proportion to the degree of tear film dysfunction and corneal staining. Metabolic deficiency of ω-3 tear film lipids may be a driver of chronic ocular surface inflammation in DE.

Indexed as

AdultAgedAged, 80 and overCorneaCross-Sectional StudiesDry Eye SyndromesFatty Acids, Omega-3FemaleFollow-Up StudiesHumansMaleMass SpectrometryMiddle AgedRetrospective StudiesSensory ThresholdsTearsFatty Acids, Omega-3

Identifiers

PMID27138739
PMCPMC4857833
OpenAlexW2474057383

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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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.