Evidence map›Paper›PMID 42547866›Full record

ArticleBMC ophthalmology2026

Longitudinal OCT changes of the peripapillary RNFL after different glaucoma interventions - a comparative study.

Carlo Fiore, Xiao Shang, Nathanael Urs Häner, Joel-Benjamin Lincke, Martin Sebastian Zinkernagel, Jan Darius Unterlauft

Abstract readComparative Study
In one paragraph

Article in BMC ophthalmology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. 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.

Carlo FioreDepartment of Ophthalmology, Bern University Hospital Inselspital, University of Bern, Freiburgstrasse, Bern, 3010, Switzerland. carlo.fiore@insel.ch.ORCID http://orcid.org/0000-0002-4923-6159
Xiao ShangDepartment of Ophthalmology, Bern University Hospital Inselspital, University of Bern, Freiburgstrasse, Bern, 3010, Switzerland.
Nathanael Urs HänerDepartment of Ophthalmology, Bern University Hospital Inselspital, University of Bern, Freiburgstrasse, Bern, 3010, Switzerland.
Joel-Benjamin LinckeDepartment of Ophthalmology, Bern University Hospital Inselspital, University of Bern, Freiburgstrasse, Bern, 3010, Switzerland.
Martin Sebastian ZinkernagelDepartment of Ophthalmology, Bern University Hospital Inselspital, University of Bern, Freiburgstrasse, Bern, 3010, Switzerland.
Jan Darius UnterlauftDepartment of Ophthalmology, Bern University Hospital Inselspital, University of Bern, Freiburgstrasse, Bern, 3010, Switzerland. Jan.Unterlauft@medizin.uni-leipzig.de.ORCID http://orcid.org/0000-0003-1469-0412

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe study's objective was to investigate the development of the peripapillary retinal nerve fiber layer (pRNFL) thickness after Deep Sclerectomy (DS), XEN microstent implantation and Preserflo (PF) microshunt implantation compared to Trabeculectomy (TE).

methodsThis retrospective monocentric study analyzed eyes with primary open-angle glaucoma (POAG) after TE, DS, XEN- or PF-implantation over 2 years. Intraocular pressure (IOP), number of IOP-lowering medications, best-corrected visual acuity (BCVA), and success rates were analyzed. pRNFL was measured by spectral domain optical coherence tomography (SD-OCT).

results462 eyes were analyzed. 108 underwent TE, 183 DS, 90 XEN- and 81 PF-implantation. Mean IOP and mean number of IOP-lowering medications decreased, while BCVA remained stable in all groups. Mean pRNFL significantly decreased in all groups, changing from 64.6 ± 2.0 to 57.8 ± 1.9 μm (-6.8 μm, p < 0.001), 63.6 ± 1.8 to 58.3 ± 2.5 μm (-5.3 μm, p = 0.005), 63.2 ± 2.2 to 60.0 ± 2.1 μm (-3.2 μm, p = 0.008) and 62.1 ± 1.8 to 59.9 ± 1.8 μm (-2.2 μm, p = 0.008) in the TE, DS, XEN and PF groups. Between 1 and 2 years postoperatively, no further statistically significant decline was observed in any group (TE: p = 0.131; DS: p = 0.374; XEN: p = 0.129; PF: p = 0.471).

conclusionsDespite success in reducing IOP and IOP-lowering medications, the pRNFL declines during the first postoperative year, with no further statistically significant decline observed during the second year.

Indexed as

Glaucoma Drainage ImplantsGlaucoma, Open-AngleNerve FibersOptic DiskRetinal Ganglion CellsSclerostomyTomography, Optical CoherenceTrabeculectomyAgedFemaleFollow-Up StudiesHumansIntraocular PressureMaleMiddle AgedRetrospective StudiesDeep sclerectomyGlaucomaPreserfloRetinal nerve fiber layerTrabeculectomyXEN

Identifiers

PMID42547866
PMCPMC13430828

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Registered trials

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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.