Evidence map›Paper›PMID 33104764›Full record

Observational studyPloS one2020

A comparison of the corneal biomechanics in pseudoexfoliation glaucoma, primary open-angle glaucoma and healthy controls using Corvis ST.

Zia Sultan Pradhan, Sujit Deshmukh, Shivani Dixit, Shruthi Sreenivasaiah, Sujani Shroff, Sathi Devi, Carroll A B Webers, Harsha Laxmana Rao

Open access · goldAbstract readComparative StudyObservational Study
In one paragraph

Observational study in PloS one, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
3.0field-weighted citation impact, top 7% 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

11 citing papers in PubMed, 25 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Review
  5. Review
  6. Ocular Biomechanics and Glaucoma.Vision (Basel, Switzerland) · 2023
    Review
  7. Review
  8. Article
  9. Review
  10. Article
  11. Article
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

8 authors at 2 institutions in 2 countries.

Zia Sultan PradhanDepartment of glaucoma, Narayana Nethralaya Eye Hospital, Bangalore, Karnataka, India.ORCID 0000-0003-4080-1665
Sujit DeshmukhDepartment of glaucoma, Narayana Nethralaya Eye Hospital, Bangalore, Karnataka, India.
Shivani DixitDepartment of glaucoma, Narayana Nethralaya Eye Hospital, Bangalore, Karnataka, India.
Shruthi SreenivasaiahDepartment of glaucoma, Narayana Nethralaya Eye Hospital, Bangalore, Karnataka, India.
Sujani ShroffDepartment of glaucoma, Narayana Nethralaya Eye Hospital, Bangalore, Karnataka, India.
Sathi DeviDepartment of glaucoma, Narayana Nethralaya Eye Hospital, Bangalore, Karnataka, India.
Carroll A B WebersUniversity Eye Clinic Maastricht, University Medical Center, Maastricht, The Netherlands.
Harsha Laxmana RaoDepartment of glaucoma, Narayana Nethralaya Eye Hospital, Bangalore, Karnataka, India.
Narayana Nethralaya · INMaastricht University · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo compare the corneal biomechanical parameters between pseudoexfoliation glaucoma (PXG), primary open-angle glaucoma (POAG) and healthy controls using Corvis ST.

methodsA prospective, cross-sectional study was conducted which included 132 treatment-naïve eyes which underwent Corvis ST. The study cohort comprised of 44 eyes with PXG, 42 eyes with POAG and 46 healthy controls. Corneal biomechanical parameters, which included corneal velocities, length of corneal applanated surface, deformation amplitude (DA), peak distance and radius of curvature, were compared between the groups using analysis of variance models.

resultsThe 3 groups were demographically similar. The mean IOP was 15.7 ±3 mmHg in the control group, 21.3 ±5 mmHg in the POAG group and 25.8 ±7 mmHg in the PXG group (p<0.0001). Corneal pachymetry was similar across the 3 groups. Mean DA was significantly lower (p<0.0001) in the PXG group (0.86 ±0.18 mm) compared to the POAG group (0.97 ±0.14mm) and the control group (1.10 ±0.15mm). Corneal velocities were also found to be statistically significantly different between the groups. However, after adjusting for IOP, there was no difference in any of the biomechanical parameters between the 3 groups.

conclusionCorneal biomechanical parameters measured on Corvis ST are not different between eyes with PXG, POAG and healthy controls after adjusting for IOP.

Indexed as

AgedBiomechanical PhenomenaCase-Control StudiesCorneaExfoliation SyndromeFemaleGlaucoma, Open-AngleHumansIntraocular PressureMaleMiddle AgedTonometry, Ocular

Identifiers

PMID33104764
PMCPMC7588080
OpenAlexW3094023588

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.