Evidence map›Paper›PMID 33244443›Full record

Trial reportTranslational vision science & technology2020

Novel Extranasal Tear Stimulation: Pivotal Study Results.

Marco H Ji, Darius M Moshfeghi, Laura Periman, David Kading, Cynthia Matossian, Gerald Walman, Scott Markham, Andy Mu, Ann Jayaram, Michael Gertner and 2 more

Registry-linked trialOpen access · goldAbstract readClinical TrialMulticenter Study
In one paragraph

Trial report in Translational vision science & technology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06525961 (A Single-center, Open-label, Single-arm Study to Evaluate the Effectiveness and Safety of Extra Nasal Neurostimulator in Patients With Dry Eye Disease Dissatisfied With Artificial Tears), which is not on this map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
2.9field-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.

NCT06525961 phase4unknown statusnot on this mapstarted 2024, after this paper: background citation

A Single-center, Open-label, Single-arm Study to Evaluate the Effectiveness and Safety of Extra Nasal Neurostimulator in Patients With Dry Eye Disease Dissatisfied With Artificial Tears

TypeinterventionalSponsorThe University of Hong KongRan2024 to 2026Enrolled30ConditionsDry Eye Disease, Dry Eye Syndromes, Dry Eye, Meibomian Gland DysfunctionArmsiTEAR100 Neurostimulator
3 · Its place in the literature

Who cites it

19 citing papers in PubMed, 1 synthesis or guideline pooled it, 33 citations in OpenAlex.

  1. Guideline
  2. Article
  3. Review
  4. Review
  5. Review
  6. Review
  7. Review
  8. Electrotherapy in the management of neuropathic corneal pain: narrative review.Experimental biology and medicine (Maywood, N.J.) · 2026
    Review
  9. Article
  10. Review
  11. Article
  12. Review
  13. Review
  14. Review
  15. Review
  16. Review
  17. Personalized Management of Dry Eye Disease: Beyond Artificial Tears.Clinical ophthalmology (Auckland, N.Z.) · 2022
    Review
  18. Alternative therapies for dry eye disease.Current opinion in ophthalmology · 2021
    Review
  19. Stimulating Tear Production: Spotlight on Neurostimulation.Clinical ophthalmology (Auckland, N.Z.) · 2021
    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

12 authors at 6 institutions in 1 country.

Marco H JiHorngren Family Vitreoretinal Center, Byers Eye Institute, Department of Ophthalmology, Stanford University School of Medicine, Palo Alto, CA, USA.
Darius M MoshfeghiHorngren Family Vitreoretinal Center, Byers Eye Institute, Department of Ophthalmology, Stanford University School of Medicine, Palo Alto, CA, USA.
Laura PerimanEvergreen Eye Center, Seattle, WA, USA.
David KadingSpecialty Eyecare Group, Seattle, WA, USA.
Cynthia MatossianMatossian Eye Associates, Pennington, NJ, USA.
Gerald WalmanArizona Eye Specialists, Phoenix, AZ, USA.
Scott MarkhamM&M Eye Institute, Prescott, AZ, USA.
Andy MuNV Eye Surgery, Las Vegas, NV, USA.
Ann JayaramMid-Peninsula Ophthalmology Medical Group, Menlo Park, CA, USA.
Michael GertnerOlympic Ophthalmics, Inc., Issaquah, WA, USA.
Paul KarpeckiKentucky Eye Institute, Lexington, KY, USA.
Neil J FriedmanMid-Peninsula Ophthalmology Medical Group, Menlo Park, CA, USA.
Arizona Pain Specialists · USEvergreen Health Medical Center · USPhiladelphia Eye Associates · USPrescott College · USSmith-Kettlewell Eye Research Institute · USStanford University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Purpose: To evaluate the efficacy and safety of iTEAR, a novel, portable, sonic external neuromodulation device, for the treatment of dry eye disease (DED). Methods: This was a multicenter, open-label, single-arm clinical trial that included adult patients with DED with a Schirmer score of ≤10 mm in at least one eye. Enrolled subjects were instructed to apply the study device at least twice per day for 30 seconds bilaterally to the external nasal nerve. After the initial baseline visit, patients were followed up at days 3, 14, 30, 90, and 180. The primary efficacy endpoint was the Schirmer index (change from unstimulated to stimulated tear production as measured by the Schirmer test) at day 30. The major secondary endpoint was the change in symptoms of DED at day 30 evaluated using the Ocular Surface Disease Index (OSDI). Results: A total of 101 subjects evaluated at day 30 had a mean Schirmer index of 9.4 mm (95% confidence interval [CI], 7.4-11.3), and the baseline OSDI improved by an average of 14.4 (95% CI, 11.1-17.7). Both endpoints were highly statistically and clinically significant at all time points. There were two mild unanticipated adverse events definitely related to the device. Conclusions: The safety and efficacy of the iTEAR device observed in this study support its indication for treating DED. Translational Relevance: Neurostimulation has the potential to improve signs and symptoms of DED.

Indexed as

Dry Eye SyndromesAdultDouble-Blind MethodHumansTearsdry eye diseasedry eyeslacrimal glandneurostimulation

Identifiers

PMID33244443
PMCPMC7683850
OpenAlexW3101689783

What OpenQuestion holds

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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.