ArticleClinical ophthalmology (Auckland, N.Z.)2025
Comparison of Keratometric Changes After Ab Interno Gel Stent Implantation, Glaucoma Drainage Devices and Trabeculectomy.
Article in Clinical ophthalmology (Auckland, N.Z.), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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.
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.
Who cites it
1 citing paper in PubMed.
- Comparison of Surgically Induced Astigmatism Between Baerveldt Glaucoma Implant Surgery and Trabeculectomy: A Retrospective Cohort Study.Journal of clinical medicine · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Purpose: To compare postoperative keratometric changes and surgically induced astigmatism (SIA) after Ab Interno Gel Stent Implantation (XEN), glaucoma drainage device (GDD), and trabeculectomy (TRAB). GDDs included Ahmed glaucoma valve (AGV) and Baerveldt glaucoma implant (BGI). Design: Prospective, interventional, longitudinal study. Participants and Methods: Fifty-one eyes with glaucoma undergoing glaucoma filtering surgery were recruited between November 2020 and May 2023. The groups consisted of 19 XEN implants (37%), 21 GDDs (41%) (2 AGVs, 19 BGIs), and 11 trabeculectomies (22%). Primary outcomes were SIA at 12 months postoperatively, measured by Pentacam (Scheimpflug imaging) and OPD-scan (topography). The arithmetic mean of SIA (M-SIA) and the centroid of SIA (C-SIA) were determined using vector analysis. Secondary outcomes included BCVA, IOP, number of meds, and complications. Results: At 12 months, C-SIA measured by tomography was similar across all groups (0.3 ± 1.0 D for XENs and GDDs and 0.4 ± 1.0 D for TRAB). Topography measurements demonstrated a C-SIA of 0.2 ± 0.9 D for XENs, 0.1 ± 0.9 D for GDD, and 0.6 ± 1.7 D for TRAB. TRAB showed a trend towards a higher proportion of eyes with >1D of astigmatism (73%) compared to the XEN (27%) and GDD groups (48%, p = 0.159). Conclusion: SIA was similar across groups when measured by tomography, while topography measurements indicated a trend towards more SIA with TRAB. Mean cylinder values at 12 months were higher in the TRAB group.
Indexed as
Identifiers
What OpenQuestion holds
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.