Evidence map›Paper›PMID 25398660›Full record

Trial reportGraefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie2015

Evaluation of oxidative stress levels in the conjunctival epithelium of patients with or without dry eye, and dry eye patients treated with preservative-free hyaluronic acid 0.15 % and vitamin B12 eye drops.

Angelo Macri, Chiara Scanarotti, Anna Maria Bassi, Sebastiano Giuffrida, Giorgio Sangalli, Carlo Enrico Traverso, Michele Iester

Abstract readComparative StudyRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 56 papers.

0numbers the graph read from it
0cells of the map it votes in
56citing papers in PubMed
3.9field-weighted citation impact, top 7% 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

56 citing papers in PubMed, 103 citations in OpenAlex.

  1. Trial
  2. Trial
  3. Article
  4. Review
  5. Review
  6. Article
  7. Vitamin abnormalities in neuropathic corneal pain.Eye and vision (London, England) · 2025
    Review
  8. Review
  9. Article
  10. Oxidative Stress in Dry Eye Disease: A Bibliometric Analysis.Clinical ophthalmology (Auckland, N.Z.) · 2025
    Review
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Potential New Target for Dry Eye Disease-Oxidative Stress.Antioxidants (Basel, Switzerland) · 2024
    Review
  18. Article
  19. Review
  20. Review
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 4 institutions in 1 country.

Angelo MacriU.O. Oculistica, IRCSS - Azienda Ospedaliera Universitaria San Martino IST - Istituto Nazionale per la Ricerca sul Cancro, Largo R. Benzi 10 - Padiglione Oculistica, Genoa, Italy, macria70@gmail.com.
Chiara Scanarotti
Anna Maria Bassi
Sebastiano Giuffrida
Giorgio Sangalli
Carlo Enrico Traverso
Michele Iester
University of Genoa · ITLeonardo (Italy) · ITOspedale Policlinico San Martino · ITScuola Superiore Internazionale di Studi Universitari di Ricerca e Formazione · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeIncreased levels of oxidative stress have been seen in animal models of dry eye and in the conjunctival epithelial cells of patients with Sjögren's syndrome. The aims of this study were to compare the levels of oxidative stress in patients with dry eye and patients without dry eye and to evaluate the effects of treatment with preservative-free eye drops containing hyaluronic acid 0.15 % and vitamin B12 on oxidative stress and dry eye symptoms.

methodsThree cohorts of patients who were to undergo planned cataract surgery were enrolled: patients with dry eye randomized to either no treatment (n = 29) or treatment (n = 32) with hyaluronic acid/vitamin B12 eye drops, and patients without dry eye (n = 42). Patients were assessed by Schirmer's type I test, fluorescein clearance test (FCT), Break Up Time (BUT), and Ocular Surface Disease Index (OSDI). Lipid peroxidation, a marker of oxidative stress, was assessed by LP-CHOLOX test.

resultsCompared with patients without dry eye, patients with dry eye had significantly increased levels of oxidative stress, higher OSDI and FCT scores, and significantly lower Schirmer's test and BUT scores. Treatment with eye drops containing hyaluronic acid 0.15 % and vitamin B12 was associated with significantly reduced levels of oxidative stress and OSDI and FCT scores and significantly increased Schirmer's test and BUT scores.

conclusionsThese findings indicate that oxidative stress is associated with dry eye and that hyaluronic acid/vitamin B12 eye drops may attenuate oxidative stress and inflammation, improving dry eye symptoms. Further study in controlled clinical trials is warranted.

Indexed as

Administration, TopicalAgedConjunctivaDrug CombinationsDry Eye SyndromesEpitheliumFemaleHumansHyaluronic AcidLipid PeroxidationMaleOphthalmic SolutionsOsmolar ConcentrationOxidative StressPreservatives, PharmaceuticalProspective StudiesDrug CombinationsHyaluronic AcidOphthalmic SolutionsPreservatives, PharmaceuticalViscosupplementsVitamin B 12Vitamin B Complex

Identifiers

PMID25398660
OpenAlexW2036471152

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.