Evidence map›Paper›PMID 35486609›Full record

ArticlePloS one2022

Evolution of corneal transplantation techniques and their indications in a French corneal transplant unit in 2000-2020.

Vianney Malleron, Florian Bloch, Yinka Zevering, Jean-Charles Vermion, Axelle Semler-Collery, Christophe Goetz, Jean-Marc Perone

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2022. 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
2.7field-weighted citation impact, top 10% of its field
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, 20 citations in OpenAlex.

  1. Trial
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Advances in corneal transplantation.Eye (London, England) · 2025
    Review
  8. Article
  9. Review
  10. Article
  11. Article
  12. Stapler for corneal transplantation: a hypothesis.Medical hypothesis, discovery & innovation ophthalmology journal · 2025
    Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Review
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

7 authors at 2 institutions in 1 country.

Vianney MalleronDepartment of Ophthalmology, Metz-Thionville Regional Hospital Center, Mercy Hospital, Metz, France.
Florian BlochDepartment of Ophthalmology, Metz-Thionville Regional Hospital Center, Mercy Hospital, Metz, France.
Yinka ZeveringDepartment of Ophthalmology, Metz-Thionville Regional Hospital Center, Mercy Hospital, Metz, France.ORCID 0000-0002-2966-0251
Jean-Charles VermionDepartment of Ophthalmology, Metz-Thionville Regional Hospital Center, Mercy Hospital, Metz, France.
Axelle Semler-ColleryDepartment of Ophthalmology, Metz-Thionville Regional Hospital Center, Mercy Hospital, Metz, France.
Christophe GoetzResearch Support Unit, Mercy Hospital, Metz-Thionville Regional Hospital Center, Metz, France.
Jean-Marc PeroneInstitut Jean Lamour, Lorraine University, Nancy, France.
Centre Hospitalier Régional de Metz-Thionville · FRInstitut Jean Lamour · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThis retrospective cohort study assessed the evolution of corneal transplantation and its indications in the last 21 years (2000-2020) in a specialized ophthalmology department in a tertiary referral center in France.

methodsThe surgical techniques and indications, patient age and sex, and postoperative best-corrected visual acuity (BCVA) 6 months after keratoplasty were extracted.

resultsIn total, 1042 eyes underwent keratoplasty in 2000-2020. Annual numbers of corneal transplantations increased by 2.2-fold. Penetrating keratoplasty (PKP) was the sole technique for the first 11 years. Descemet stripping automated endothelial keratoplasty (DSAEK) and Descemet membrane endothelial keratoplasty (DMEK) were introduced in 2011 and 2014, respectively. Cases of both quickly increased, accounting for 28% and 41% of cases in 2015-2020, respectively. Eventually, DSAEK and DMEK were respectively used for most pseudophakic bullous keratopathy (PBK) and all Fuchs endothelial cell dystrophy (FECD) cases. PKP cases declined to 27%. Deep anterior lamellar keratoplasty (DALK) was rare (3% of all cases). These changes associated with rises in PBK and particularly FECD cases, and a strong decline in keratoconus, causing FECD, PBK, and keratoconus to move from being the 4th, 1st, and 3rd most common indications to the 1st, 2nd, and 6th, respectively. On average, BCVA improved by 0.1-0.3 logMAR. Patient age dropped steadily over time. Female predominance was observed.

conclusionsThe invention of DSAEK and then DMEK precipitated an enormous change in clinical practice and a large expansion of keratoplasty to new indications. This study confirms and extends previous findings in other countries.

Indexed as

Descemet Stripping Endothelial KeratoplastyFuchs' Endothelial DystrophyKeratoconusFemaleHumansKeratoplasty, PenetratingMaleRetrospective Studies

Identifiers

PMID35486609
PMCPMC9053824
OpenAlexW4225114707

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.