Evidence map›Paper›PMID 42159690›Full record

ArticleGraefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie2026

Sonography versus anterior segment OCT for imaging bleb morphology after glaucoma drainage device surgery.

Pascal Schipper, Benjamin Aretz, Leonie Bourauel, Carolin Deubel, Michael Petrak, Frank G Holz, Raffael Liegl, Karl Mercieca, Constance Liegl

Abstract read
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In one paragraph

Article in Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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

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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

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

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5 · Who and what money

Authors and funding

9 authors.

Pascal SchipperDepartment of Ophthalmology, University of Bonn, Bonn, Germany.
Benjamin AretzInstitute for Medical Biometry, Informatics and Epidemiology, University of Bonn, Bonn, Germany.
Leonie BourauelDepartment of Ophthalmology, University of Bonn, Bonn, Germany.
Carolin DeubelDepartment of Ophthalmology, University of Bonn, Bonn, Germany.
Michael PetrakDepartment of Ophthalmology, University of Bonn, Bonn, Germany.
Frank G HolzDepartment of Ophthalmology, University of Bonn, Bonn, Germany.
Raffael LieglDepartment of Ophthalmology, University of Bonn, Bonn, Germany.
Karl MerciecaDepartment of Ophthalmology, University of Bonn, Bonn, Germany.
Constance LieglDepartment of Ophthalmology, University of Bonn, Bonn, Germany. constance.liegl@ukbonn.de.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe PAUL

methodsIn this prospective observational study, 20 patients (21 eyes) with PGI underwent postoperative assessment with both AS-OCT and B-scan ultrasonography. Bleb configuration (single- vs. double-layered), bleb height, and spatial extension were evaluated and compared between modalities.

resultsMean age was 64.0 years (SD = 16.6); 80% were male. Sonography identified double-layered blebs in 95.2% of eyes, compared to 47.7% with AS-OCT, which failed to fully visualize bleb layers in 38.1% of eyes. Sonography consistently measured greater bleb heights and lengths than AS-OCT (total bleb height 3.76 ± 1.39 mm vs. 1.77 ± 0.71 mm, p < 0.001; maximum bleb length 17.24 ± 3.17 mm vs. 2.85 ± 1.03 mm, p < 0.001).

conclusionsSonography provided more comprehensive visualization of PGI blebs, particularly in detecting double-layered configurations, total height and measuring full posterior extension, whereas AS-OCT offered detailed anterior segment assessment including the tube entry site and patch graft. Both modalities yield complementary information, and their combined use may enhance postoperative monitoring and early detection of bleb dysfunction.

Indexed as

Anterior segment OCTGlaucoma drainage deviceGlaucoma surgeryPAUL® glaucoma implantSonography

Identifiers

PMID42159690

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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.