ArticleActa ophthalmologica2026
Retinal oxygen saturation and retinal vessel diameter in glaucoma patients before and after trabeculectomy.
Article in Acta ophthalmologica, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
Abstract
purposeTo compare retinal vessel oxygen saturations and diameters before, 1 and 3 months after trabeculectomy.
methodsRetinal oxygen saturations and vessel diameters were obtained using retinal oximetry. The effect of the postoperative intraocular pressure (IOP) decrease on the arteriovenous difference (AV-difference) was evaluated, adjusting for mean defect (MD). The impact of trabeculectomy on AV-difference was compared between lowest (Q1) and highest (Q4) MD quartiles. Paired t-test, linear regression and Welch's t-test were applied.
resultsOf 72 enrolled participants, 64 eyes of 64 participants were included. Arteriolar oxygen saturations were unchanged (97.4 ± 4.9% preoperatively, 98.1 ± 6.0% 1 month [p = 0.053], 98.2 ± 6.8% 3 months postoperatively [p = 0.154]). Venular saturations were also unchanged (62.0 ± 9.5% preoperatively, 61.7 ± 8.0% 1 month [p = 0.505], 61.3 ± 10.6% 3 months postoperatively [p = 0.685]). No significant difference in AV-difference occurred. Arteriolar diameters were unchanged 1 month postoperatively (109.7 μm ± 16.2 vs. 110.9 μm ± 19.3 [p = 0.80]) but decreased to 106.0 μm ± 15.7 3 months postoperatively (p = 0.012). Venular diameters increased 1 month postoperatively (152.8 μm ± 21.3 vs. 147.7 μm ± 20.0 [p = 0.034]) but not 3 months postoperatively (148.6 μm ± 24.8; p = 0.893). No association between postoperative IOP decrease and postoperative MD-adjusted AV-difference was found (p = 0.380). No significant change in AV-difference between Q1 and Q4 (p = 0.18) was found.
conclusionRetinal oxygen saturations remained stable, whereas vessel diameter changes occurred after trabeculectomy, probably reflecting alterations in IOP and perfusion pressure.
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.