Evidence map›Paper›PMID 33651203›Full record

ArticleGraefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie2021

Comparative profile of ocular surface microbiome in vernal keratoconjunctivitis patients and healthy subjects.

Pratima Vishwakarma, Sanchita Mitra, Tushar Beuria, Manas Ranjan Barik, Srikant K Sahu

Abstract read
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In one paragraph

Article in Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
1.8field-weighted citation impact, top 16% 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

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 16 citations in OpenAlex.

  1. Vernal Keratoconjunctivitis: A Systematic Review.Clinical reviews in allergy & immunology · 2023
    Pooled it
  2. Observational
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  4. Phenotypic characterization, molecular typing, and clonal relatedness within Staphylococcus isolates in healthy ocular conditions.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2026
    Article
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  11. The Emergence Potential ofArchives of Razi Institute · 2024
    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

5 authors at 2 institutions in 1 country.

Pratima VishwakarmaCornea & Anterior Segment Service, LV Prasad Eye Institute, Bhubaneswar, Odisha, India.
Sanchita MitraOcular Microbiology Service, LV Prasad Eye Institute, Bhubaneswar, Odisha, India.
Tushar BeuriaInstitute of Life Sciences, Bhubaneswar, Odisha, India.
Manas Ranjan BarikOcular Microbiology Service, LV Prasad Eye Institute, Bhubaneswar, Odisha, India.
Srikant K SahuCornea & Anterior Segment Service, LV Prasad Eye Institute, Bhubaneswar, Odisha, India. srikantsahu@lvpei.org.
L V Prasad Eye Institute · INInstitute of Life Sciences · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo compare ocular surface microbiome and its antibiotic sensitivity in vernal keratoconjunctivitis (VKC) with normal ocular surface.

methodsIn this case-control study, thirty patients each with clinical diagnosis of VKC and age-matched controls with normal ocular surface were enrolled. Tear film samples were collected from each group and subjected to microbial evaluation with microscopy, conventional culture methods, and polymerase chain reaction (PCR). Microbial diversity and antibiotic sensitivity patterns were analyzed.

resultsMost patients (67%) belonged to severe grades (3 and 4) of VKC, and allergic history could be elicited in 20%. On culture, bacteria were isolated in 50% of VKC patients and 47% of control group. Staphylococcus species were identified in 70% VKC group and 57% control group. S. aureus growth was seen in 52% and 21% of VKC patients and controls, respectively. S. pneumoniae was isolated only in controls (29%) (p<0.05). Confluent colonies (≥10 colonies/μl) were seen in 70% of VKC patients and 14% of controls (p<0.05). Fluoroquinolone resistance was more among higher grades of VKC (50%) (p<0.01) and was observed in 46% of VKC patients and 23% of control group (p<0.01). Both groups were negative for HSV-1 DNA and fungal growth.

conclusionStaphylococcus, the most common ocular surface flora, was predominant in VKC patients. Microbial analysis revealed similar microbial diversity in both groups. However, bacterial load was higher in VKC. Increased fluoroquinolone resistance was observed in VKC patients with more resistance among higher grades. Fungi and HSV-1 were not seen in VKC or normal ocular surface.

Indexed as

Conjunctivitis, AllergicMicrobiotaCase-Control StudiesHealthy VolunteersHumansStaphylococcus aureusTearsAntibiotic susceptibilityFluoroquinolonesOcular surface microbiomeStaphylococcus aureusVernal keratoconjunctivitis

Identifiers

PMID33651203
OpenAlexW3134369250

What OpenQuestion holds

Textmetadata
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.