Evidence map›Paper›PMID 36477728›Full record

ArticleEye (London, England)2023

Effect of trabeculectomy on the rate of progression of visual field damage.

Susanna Friederike Koenig, Giovanni Montesano, Clarissa Ern Hui Fang, David Paul Crabb, Hari Jayaram, Jonathan Clarke

Abstract read
In one paragraph

Article in Eye (London, England), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
–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

8 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  3. Observational
  4. Article
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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.

Susanna Friederike KoenigMoorfields Eye Hospital NHS Foundation Trust, 162 City Road, EC1V 2PD, London, UK. susanna.koenig@uniklinik-ulm.de.ORCID 0000-0002-3199-0276
Giovanni MontesanoOptometry and Visual Sciences, City, University of London, London, UK.
Clarissa Ern Hui FangMoorfields Eye Hospital NHS Foundation Trust, 162 City Road, EC1V 2PD, London, UK.ORCID 0000-0002-7266-7117
David Paul CrabbOptometry and Visual Sciences, City, University of London, London, UK.
Hari JayaramMoorfields Eye Hospital NHS Foundation Trust, 162 City Road, EC1V 2PD, London, UK.ORCID 0000-0003-1998-0670
Jonathan ClarkeMoorfields Eye Hospital NHS Foundation Trust, 162 City Road, EC1V 2PD, London, UK.ORCID 0000-0002-9780-6216

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesThis study quantifies the effect of trabeculectomy on the rate of progression (RoP) of visual field (VF) damage utilising pre- and post-operative visual function as the outcome instead of surrogate outcomes of success.

methodsClinical and VF data from 199 sequential patients who underwent trabeculectomy between 2015 and 2016 were extracted from the network of sites of Moorfields Eye Hospital NHS Foundation Trust. Of these, we analysed 80 eyes of 74 patients who met our inclusion criteria of at least three reliable VFs before and after surgery (false positive rate <15%). The change in mean RoP (dB/year) was tested using point-wise sensitivity values through a mixed effect model with random effects on both intercepts and slopes. A broken-stick regression of sensitivity over time, with a breakpoint at the day of surgery, modelled the individual change in RoP.

resultsWe analysed 10 [9,12] VFs per subject (Median [Interquartile Range]). At surgery, the age was 67 [57, 72] years, mean deviation was -10.84 [-14.7, -5.6] dB and the IOP was 18 [15, 20] mmHg. One year after surgery, the IOP was 10 [8,13] mmHg (p = 0.002). Mean RoP before surgery was -0.94 [-1.20, -0.69] dB/year (Mean [95% credible intervals]) and it was slowed down by 0.62 [0.26, 0.97] dB/year (p < 0.001) after surgery.

conclusionsTrabeculectomy leads to a significant reduction in the RoP of VF loss postoperatively.

Indexed as

TrabeculectomyVisual FieldsDisease ProgressionHumansIntraocular PressureRetrospective StudiesTonometry, Ocular

Identifiers

PMID36477728
PMCPMC10333233

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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.