Evidence map›Paper›PMID 40387241›Full record

ArticleActa ophthalmologica2026

Genetic diversity of Acanthamoeba and clinical outcome predictors in Danish patients with Acanthamoeba keratitis.

Sandra M Skovdal, Christen Rune Stensvold, Henrik Vedel Nielsen, Stine Elkjær Nielsen, Jesper Hjortdal, Anders Ivarsen

Abstract read
In one paragraph

Article in Acta ophthalmologica, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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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

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3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Microbiology spectrum · 2026
    Article
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4 · The record

Corrections and comments

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5 · Who and what money

Authors and funding

6 authors.

Sandra M SkovdalDepartment of Ophthalmology, Aarhus University Hospital, Aarhus, Denmark.ORCID https://orcid.org/0000-0003-2602-197X
Christen Rune StensvoldDepartment of Bacteria, Parasites, and Fungi, Statens Serum Institut, Copenhagen, Denmark.
Henrik Vedel NielsenDepartment of Bacteria, Parasites, and Fungi, Statens Serum Institut, Copenhagen, Denmark.
Stine Elkjær NielsenDepartment of Ophthalmology, Aarhus University Hospital, Aarhus, Denmark.
Jesper HjortdalDepartment of Ophthalmology, Aarhus University Hospital, Aarhus, Denmark.
Anders IvarsenDepartment of Ophthalmology, Aarhus University Hospital, Aarhus, Denmark.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeAcanthamoeba keratitis (AK) is a severe corneal infection with potential detrimental effects on visual outcome and quality of life, primarily affecting young contact lens wearers. We report Acanthamoeba genotypes, subtypes and clinical outcome from Danish patients with AK.

methodsThirty-nine PCR-positive AK cases diagnosed and treated at Aarhus University Hospital, Denmark, from 2002 to 2022 were included. Corneal samples underwent next-generation sequencing (NGS) for Acanthamoeba genotyping. These data were compared with clinical data and results from PCR.

resultsAcanthamoeba T4 was the most frequent genotype (n = 35), with four subtypes identified (T4A, T4B, T4D and T4G); three cases of the T3 genotype were observed. Three samples showed evidence of two distinct Acanthamoeba sequences. The median patient age was 35 years, genders were equally represented and the median time from symptom onset to diagnosis was 26 days. Ninety per cent had identifiable risk factors in addition to contact lens wear. Corticosteroid treatment prior to AK diagnosis, moderate-to-severe pain, male gender, older age, ring infiltration and infiltrate size >3 mm were associated with poor visual outcome. No significant correlation was found between Acanthamoeba genotype or subtype and clinical outcomes.

conclusionWe reveal the genetic diversity of Acanthamoeba involved in AK in Denmark. However, genotype or subtype did not predict clinical outcome. Further research is needed to clarify the role of specific genotypes and subtypes in disease progression and treatment response.

Indexed as

AcanthamoebaAcanthamoeba KeratitisCorneaDNA, ProtozoanGenetic VariationAdolescentAdultAgedChildDenmarkFemaleFollow-Up StudiesGenotypeHumansMaleMiddle AgedDNA, ProtozoanAcanthamoeba keratitisclinical microbiologycontact lens weargenetic diversityinfectious keratitismolecular epidemiologynext‐generation sequencing

Identifiers

PMID40387241
PMCPMC12803584

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