Evidence map›Paper›PMID 34394865›Full record

ArticleJournal of ophthalmic & vision research

Analyzing the Carbon Footprint of an Intravitreal Injection.

Barry Power, Robert Brady, Paul Connell

Abstract read
In one paragraph

Article in Journal of ophthalmic & vision research. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing 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

17 citing papers in PubMed.

  1. Article
  2. Travel-associated emissions of intravitreal injections.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2026
    Article
  3. Article
  4. Article
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  6. Sustainability practices made easy.Eye (London, England) · 2025
    Review
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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

3 authors.

Barry PowerVitreoretinal Department, Mater Misericordiae University Hospital, Dublin, Ireland.ORCID 0000-0002-7045-0264
Robert BradyVitreoretinal Department, Mater Misericordiae University Hospital, Dublin, Ireland.
Paul ConnellVitreoretinal Department, Mater Misericordiae University Hospital, Dublin, Ireland.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo estimate the carbon footprint of a single intravitreal injection in a hospital-based intravitreal service.

methodsGreenhouse gas emissions attributable to the delivery of an intravitreal injection were calculated using a hybrid lifecycle analysis technique. Data were collected regarding procurement of materials, patient travel, and building energy use.

resultsCarbon emissions associated with a single intravitreal injection, excluding the anti-VEGF agent, were 13.68 kg CO

conclusionWasteful practice in healthcare increases greenhouse gas production and drives climate change. The healthcare sector should be a leader in sustainable practice promotion and changes to high volume procedures have the largest impact on emissions. Long-acting agents offer the greatest future potential for meaningful reductions.

Indexed as

Anti-VEGFClimate ChangeMedical RetinaSustainability

Identifiers

PMID34394865
PMCPMC8358765

What OpenQuestion holds

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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.