Evidence map›Paper›PMID 42891794›Full record

ArticleJapanese journal of ophthalmology2026

Surgical waste and greenhouse gas emissions in cataract surgery: a multicenter interventional study at ten Japanese hospitals.

Yoshitaka Takizawa, Hitoshi Tabuchi, Mao Tanabe, Keita Kihara, Masaki Miyoshi, Shoji Kuriyama, Riko Matsumoto, Masashi Fujiwara, Yasuo Kurimoto, Masayuki Shimizu and 7 more

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Article in Japanese journal of ophthalmology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited 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

The trial behind it

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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

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

17 authors.

Yoshitaka TakizawaDepartment of Ophthalmology, Japanese Red Cross Kitami Hospital, Kitami, Japan. kyokui100034@gmail.com.ORCID http://orcid.org/0000-0003-1897-9993
Hitoshi TabuchiTsukazaki Hospital, Himeji, Japan.
Mao TanabeTsukazaki Hospital, Himeji, Japan.
Keita KiharaTsukazaki Hospital, Himeji, Japan.
Masaki MiyoshiTsukazaki Hospital, Himeji, Japan.
Shoji KuriyamaRakuwakai Otowa Hospital Eye Center, Kyoto, Japan.
Riko MatsumotoRakuwakai Otowa Hospital Eye Center, Kyoto, Japan.
Masashi FujiwaraKobe City Eye Hospital, Kobe, Japan.
Yasuo KurimotoKobe City Eye Hospital, Kobe, Japan.
Masayuki ShimizuSaitama Red Cross Hospital, Saitama, Japan.
Kiyoshi IshiiSaitama Red Cross Hospital, Saitama, Japan.
Masayuki AkimotoOsaka Red Cross Hospital, Osaka, Japan.
Shinichiro NakanoRyugasaki Saiseikai Hospital, Ryugasaki, Japan.
Yoshifumi OkamotoMito Kyodo General Hospital, Mito, Japan.
Masaharu IidaTsukuba Gakuen Hospital, Tsukuba, Japan.
Gaku KiuchiUniversity of Tsukuba, Tsukuba, Japan.
Tetsuro OshikaUniversity of Tsukuba, Tsukuba, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo quantify waste and greenhouse gas (GHG) emissions from disposable materials used in cataract surgery in Japan and to assess pragmatic, site-selected waste-reduction interventions. STUDY

designProspective multicenter observational and interventional (before and after) clinical study.

methodsTen Japanese sites audited 10 consecutive standard phacoemulsification cases at baseline and after implementing low-risk intervention selected by each site and integrated into routine workflow. Disposable items were collected and weighed. GHG emissions were estimated as a partial footprint attributable to disposable materials, expressed as carbon dioxide equivalents (CO

resultsA total of 201 surgical procedures were analyzed (100 baseline, 101 post-intervention). Baseline mean waste was 2.28 ± 0.40 kg and mean GHG emissions were 9.80 ± 2.14 kg CO

conclusionsCataract surgery in Japanese sites generates substantial disposable-material waste and associated CO

Indexed as

Carbon footprintCataract surgeryGreenhouse gas emissionsJapanSurgical waste

Identifiers

PMID42891794

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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.