ArticleJournal of current ophthalmology2017
Keratoconus diagnosis using Corvis ST measured biomechanical parameters.
Article in Journal of current ophthalmology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.
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Who cites it
41 citing papers in PubMed.
- Characteristics and Prediction Accuracy According to Corneal Stiffness in Suspected Keratoconus.Journal of clinical medicine · 2026Article
- Corneal tomographic and densitometric characteristics in children with allergic conjunctivitis: a comparative pentacam AXL study.BMC ophthalmology · 2026Article
- Sex hormone-mediated corneal remodeling in keratoconus: a multivariate analysis of tomographic and biomechanical variations across gender, age, and menstrual phases.BMC ophthalmology · 2026Article
- Cornea biomechanics and biometric evaluations in immunoglobulin G4-related ophthalmic disease.PloS one · 2026Article
- Regional corneal biomechanics assessment as a function of age using Strain-Stress Index maps.Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) · 2025Review
- A Novel Approach to Fabricate Early Keratoconus Phantom Models.Translational vision science & technology · 2025Article
- A novel corneal indentation device for comparison of corneal tangent modulus before and after FS-LASIK in vivo.Biomedical engineering online · 2025Article
- Reproducibility and Screening Capability of Corneal Epithelial Thickness Measurement for Keratoconus Using Anterior Segment Optical Coherence Tomography.Clinical ophthalmology (Auckland, N.Z.) · 2025Article
- Effects of Allergic Predisposition on Corneal Biomechanical Properties in Normal Corneas: A Retrospective Study.Juntendo medical journal · 2025Article
- Article
- Keratectasia severity staging and progression assessment based on the biomechanical E-staging.Eye and vision (London, England) · 2024Review
- Alterations in Corneal Sensitivity, Staining and Biomechanics of Alopecia Areata Patients: Novel Findings in a Case-Control Study.Journal of clinical medicine · 2024Article
- Distinguishing subclinical from clinical keratoconus by corneal measurements.Frontiers in medicine · 2024Article
- Systemic and Ocular Associations of Keratoconus.Expert review of ophthalmology · 2024Article
- Corneal biomechanics in normal and subclinical keratoconus eyes.BMC ophthalmology · 2023Article
- Screening of sensitiveFrontiers in bioengineering and biotechnology · 2023Article
- Artificial Intelligence-Based Diagnostic Model for Detecting Keratoconus Using Videos of Corneal Force Deformation.Translational vision science & technology · 2022Article
- Correlation between corneal dynamic responses and keratoconus topographic parameters.The Journal of international medical research · 2022Article
- Determine Corneal Biomechanical Parameters by Finite Element Simulation and Parametric Analysis Based on ORA Measurements.Frontiers in bioengineering and biotechnology · 2022Article
- The Shape of Corneal Deformation Alters Air Puff-Induced Loading.Frontiers in bioengineering and biotechnology · 2022Article
Corrections and comments
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeTo assess the diagnostic power of the Corneal Visualization Scheimpflug Technology (Corvis ST) provided corneal biomechanical parameters in keratoconic corneas.
methodsThe following biomechanical parameters of 48 keratoconic eyes were compared with the corresponding ones in 50 normal eyes: time of the first applanation and time from start to the second applanation [applanation-1 time (A1T) and applanation-2 time (A2T)], time of the highest corneal displacement [highest concavity time (HCT)], magnitude of the displacement [highest concavity deformation amplitude (HCDA)], the length of the flattened segment in the applanations [first applanation length (A1L) and second applanation length (A2L)], velocity of corneal movement during applanations [applanation-1 velocity (A1V) and applanation-2 velocity (A2V)], distance between bending points of the cornea at the highest concavity [highest concavity peak distance (HCPD)], central concave curvature at the highest concavity [highest concavity radius (HCR)]. To assess the change of parameters by disease severity, the keratoconus group was divided into two subgroups, and their biomechanical parameters were compared with each other and with normal group. The parameters' predictive ability was assessed by receiver operating characteristic (ROC) curves. To control the effect of central corneal thickness (CCT) difference between the two groups, two subgroups with similar CCT were selected, and the analyses were repeated.
resultsOf the 10 parameters compared, the means of the 8 were significantly different between groups (
conclusionsThe A1T seems a valuable parameter in the diagnosis of keratoconic eyes. It showed excellent diagnostic ability even when controlled for CCT. None of the parameters were reliable index for keratoconus staging.
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