Evidence map›Paper›PMID 27977576›Full record

Observational studyMedicine2016

Outcome of primary trabeculotomy ab interno (Trabectome) surgery in patients with steroid-induced glaucoma.

Philip Ngai, Grace Kim, Garrick Chak, Ken Lin, Masahiro Maeda, Sameh Mosaed

Open access · goldAbstract readMulticenter StudyObservational Study
In one paragraph

Observational study in Medicine, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
4.9field-weighted citation impact, top 5% 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

14 citing papers in PubMed, 34 citations in OpenAlex.

  1. Review
  2. Visual Function After Schlemm's Canal-Based MIGS.Journal of clinical medicine · 2025
    Review
  3. Review
  4. Article
  5. Favorable effect of ripasudil use on surgical outcomes of microhook ab interno trabeculotomy.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2023
    Article
  6. Circumferential (360°) trabeculotomy for steroid-induced glaucoma in adults.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2023
    Article
  7. Observational
  8. Review
  9. Article
  10. Five-year clinical outcomes of combined phacoemulsification and trabectome surgery at a single glaucoma center.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2019
    Article
  11. Article
  12. Article
  13. Article
  14. 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

6 authors at 2 institutions in 1 country.

Philip NgaiUniversity of California, Gavin Herbert Eye Institute University of California, Irvine School of Medicine, Irvine, CA Yasuma Eye Clinic, Aichi, Japan.
Grace Kim
Garrick Chak
Ken Lin
Masahiro Maeda
Sameh Mosaed
The California Eye Institute · USUniversity of California, Irvine · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

To determine the efficacy and safety of Trabectome surgery on patients with steroid response, ranging from ocular hypertension refractory to maximal medical therapy to the development of steroid-induced glaucoma.A nonrandomized, nonblinded, retrospective study of 20 subjects with steroid response was conducted. All 20 eyes underwent Trabectome surgery alone. Nine subjects had steroid response with unremarkable visual field, 3 had mild steroid-induced glaucoma, and 8 had advanced steroid-induced glaucoma. Outcome measures included intraocular pressure (IOP), number of glaucoma medications, need for secondary glaucoma surgery, and steroid regimen. Mann-Whitney U test was used to compare postoperative IOP and number of medications to preoperative IOP and number of medications. Kaplan-Meier was used for survival analysis, and success was defined as: IOP reduced by 20% or more on any 2 consecutive visits after 3 months; IOP ≤21 mm Hg on any 2 consecutive visits after 3 months; and no secondary glaucoma surgery.The average preoperative IOP was 33.8 ± 6.9 mm Hg and average preoperative glaucoma medication usage was 3.85 ± 0.75 medications. At 12 months, the IOP was reduced to 15.00 ± 3.46 mm Hg (P = 0.03) and glaucoma medication was reduced to 2.3 ± 1.4 (P < 0.01). The survival rate at 12 months was 93%. At 12 months, 10 patients were continued on their preoperative steroid treatments, 5 were on tapered steroid treatments, and 5 had ceased steroid treatments entirely. One patient required secondary glaucoma surgery (glaucoma drainage device). No other complications were noted.The Trabectome procedure is safe and highly effective for steroid-response glaucoma, even in the context of continued steroid treatment.

Indexed as

Adrenal Cortex HormonesAdultAgedAged, 80 and overCohort StudiesFemaleFollow-Up StudiesGlaucomaHumansMaleMiddle AgedOcular HypertensionRetrospective StudiesRisk AssessmentTonometry, OcularTrabeculectomyAdrenal Cortex Hormones

Identifiers

PMID27977576
PMCPMC5268022
OpenAlexW2560874594

What OpenQuestion holds

Textmetadata
LicenceCC BY-ND
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.