Evidence map›Paper›PMID 36038724›Full record

ArticleEye (London, England)2023

Detection ability of corneal biomechanical parameters for early diagnosis of ectasia.

Mohammad-Reza Sedaghat, Hamed Momeni-Moghaddam, Javad Heravian, Atiyeh Ansari, Helia Shayanfar, Majid Moshirfar

Open access · greenAbstract read
In one paragraph

Article in Eye (London, England), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
2.6field-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

10 citing papers in PubMed, 22 citations in OpenAlex.

  1. Article
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  3. Article
  4. Article
  5. Review
  6. Review
  7. Article
  8. Refractive associations with corneal biomechanical properties among young adults: a population-based Corvis ST study.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2024
    Article
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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

6 authors at 3 institutions in 2 countries.

Mohammad-Reza SedaghatEye Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
Hamed Momeni-MoghaddamHealth Promotion Research Center, Zahedan University of Medical Sciences, Zahedan, Iran. hmomeni_opt@yahoo.com.ORCID 0000-0003-3933-748X
Javad HeravianDepartment of Optometry, School of Paramedical Sciences, Mashhad University of Medical Sciences, Mashhad, Iran.
Atiyeh AnsariDepartment of Optometry, School of Paramedical Sciences, Mashhad University of Medical Sciences, Mashhad, Iran.
Helia ShayanfarEye Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
Majid MoshirfarHoopes Vision Research Center, Hoopes Vision, 11820S. State St. #200, Draper, UT, 84020, USA.ORCID 0000-0003-1024-6250
Mashhad University of Medical Sciences · IRUniversity of Utah · USZahedan University of Medical Sciences · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo assess the detection ability of corneal biomechanical parameters for early diagnosis of ectasia.

methodsThis retrospective descriptive-analytical study included 134 normal eyes (control group) from 134 healthy subjects and 128 eyes with asymmetric contralateral corneal ectasia with normal topography (ACE-NT, study group) from 128 subjects with definite keratoconus in the opposite eye. Placido-disk-based corneal topography with TMS-4, Scheimpflug corneal tomography with Pentacam HR, and corneal biomechanical assessment with Corvis ST and ocular response analyzer (ORA) were performed. A general linear model was used to compare Corvis ST and ORA biomechanical parameters between groups, while central corneal thickness (CCT) and biomechanically corrected intraocular pressure (bIOP) were considered covariates. Receiving operator sensitivity curve (ROC) analysis was used to determine the cut-off point with the highest sensitivity and specificity along with the area under the curve (AUC) for each parameter.

resultAll parameters of Corvis ST and ORA showed a statistically significant difference between the two groups except for the first (P = 0.865) and second (P = 0.226) applanation lengths, and deformation amplitude (P = 0.936). The discriminative analysis of corneal biomechanical showed that the highest accuracy for the classic, new, and combined parameters of Corvis ST was related to HCR (AUC: 0.766), IR & DAR (0.846), and TBI (0.966), respectively. Using ORA, the corneal resistance factor (0.866) had a higher detection ability than corneal hysteresis (0.826).

conclusionsTBI has the best accuracy and the highest effect size for differential diagnosis of normal from ACE-NT eyes with a cut-off point of 0.24.

Indexed as

CorneaKeratoconusBiomechanical PhenomenaCorneal PachymetryCorneal TopographyDilatation, PathologicEarly DiagnosisHumansRetrospective StudiesROC Curve

Identifiers

PMID36038724
PMCPMC10220061
OpenAlexW4293493698

What OpenQuestion holds

Textmetadata
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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.