Evidence map›Paper›PMID 34594099›Full record

ArticleClinical ophthalmology (Auckland, N.Z.)2021

Suppression of Diurnal (9AM-4PM) IOP Fluctuations with Minimally Invasive Glaucoma Surgery: An Analysis of Data from the Prospective, Multicenter, Single-Arm GEMINI Study.

Mark F Pyfer, Mark Gallardo, Anita Campbell, Brian E Flowers, Jaime E Dickerson, Alain Talla, Kavita Dhamdhere

Abstract read
In one paragraph

Article in Clinical ophthalmology (Auckland, N.Z.), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
–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

16 citing papers in PubMed.

  1. Article
  2. Article
  3. Observational
  4. Article
  5. Ab Interno Goniotomy/Goniectomy TechniquesTurkish journal of ophthalmology · 2025
    Review
  6. Article
  7. Review
  8. Observational
  9. Canaloplasty and trabeculotomy with the OMNIInternational ophthalmology · 2023
    Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Ab-interno Trabeculotomy Procedures: A Review.Journal of current ophthalmology
    Review
  16. 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.

Mark F PyferNorthern Ophthalmic Associates, Jenkintown, PA, USA.
Mark GallardoEl Paso Eye Surgeons, PA, El Paso, TX, USA.ORCID 0000-0001-8853-598X
Anita CampbellGrene Vision Group, Wichita, KS, USA.
Brian E FlowersOphthalmology Associates, Fort Worth, TX, USA.
Jaime E DickersonSight Sciences, Inc., Menlo Park, CA, USA.ORCID 0000-0001-6748-9742
Alain TallaSight Sciences, Inc., Menlo Park, CA, USA.ORCID 0000-0001-9151-0521
Kavita DhamdhereSight Sciences, Inc., Menlo Park, CA, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThis study analyzes diurnal IOP data (9AM, 12PM, 4PM) from a prospective 12-month trial of the OMNI Surgical System in open-angle glaucoma (OAG) patients with the aim of evaluating effect of MIGS surgery on the amplitude of the diurnal IOP profile pre- and postoperatively.

settingFifteen ophthalmology practices and surgery centers located in 14 states in the United States.

designProspective, multicenter, IRB approved study. Patients treated with canaloplasty (360°) and trabeculotomy (180°). Patients had cataract and mild-moderate OAG with intraocular pressure (IOP) ≤33 mmHg on zero to four hypotensive medications.

methodsPost-hoc analysis of diurnal IOP data from the multicenter GEMINI study. Analysis includes comparison of IOP preoperatively and at month 12 for each of the diurnal time points, 9AM, 12PM, 4PM, change in magnitude of spread between the maximum IOP and minimum IOP for each patient and the proportions of patients preoperatively and at month 12 with IOPs at or below 25, 21, 18, and 15 mmHg, average variability (standard deviation of the 9AM, 12PM, and 4PM IOP) preoperatively and at month 12.

resultsA total of 128 patients included in this analysis. IOP at each diurnal timepoint was significantly lower postoperatively (p<0.0001). The difference between highest and lowest IOP measurement for each patient averaged 2.8 mmHg preoperatively (SD 2.4, MAX 14, MIN 0) and 1.8 mmHg (SD 1.7, MAX 10, MIN 0) month 12 (P<0.00001). The proportion with IOP ≤ to 25, 21, 18, and 15 mmHg increased; 75%-97%, 27%-88%, 1%-79%, and <1%-56%, respectively. The average variability was greater at all time points preoperatively (P<0.0001).

conclusionThis study demonstrates that eyes with OAG can benefit from an overall decreased IOP and degree of IOP fluctuations for as long as 12 months after surgical treatment with canaloplasty and trabeculotomy.

Indexed as

diurnal IOPIOP fluctuationOMNI surgical systemprimary open-angle glaucomatrabeculotomyviscodilation

Identifiers

PMID34594099
PMCPMC8478499

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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.