ArticleJournal of clinical medicine2022
Novel Method of Measuring Corneal Viscoelasticity Using the Corvis ST Tonometer.
Article in Journal of clinical medicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.
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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.
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Who cites it
4 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Advances in glaucoma biomechanics from 2000 to 2024: a bibliometric study and visualization analysis.Frontiers in neuroscience · 2025Pooled it
- Safety and efficacy of stromal lenticule addition keratoplasty in the treatment of hyperopia: a retrospective study.BMC ophthalmology · 2025Article
- Multimodal-Based Non-Contact High Intraocular Pressure Detection Method.Sensors (Basel, Switzerland) · 2025Article
- A Method for Visualizing Corneal Dynamics Through Pixel Intensity Tracking.Translational vision science & technology · 2025Article
Corrections and comments
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Authors and funding
3 authors.
Funding
Abstract
backgroundThe process of rapid propagation of the corneal deformation in air puff tonometer depends not only on intraocular pressure, but also on the biomechanical properties of the cornea and anterior eye. One of the biomechanical properties of the cornea is viscoelasticity, which is the most visible in its high-speed deformations. It seems reasonable to link the corneal viscoelasticity parameter to two moments of the highest speed of corneal deformations, when the cornea buckles. The aim of this work is to present a method of determining the time and place of occurrence of corneal buckling, examine spatial and temporal dependencies between two corneal applanations and bucklings in the Corvis ST tonometer, and correlate these dependencies with corneal viscoelastic properties.
methodsImages of the horizontal cross section of the Corvis ST deformed cornea from the air puff tonometer Corvis ST were used. 14 volunteers participated in the study, each of them had one eye measured eight times. Mutual changes in the profile slopes of the deformed corneas were numerically determined. They describe pure corneal deformation, eliminating the influence of rotation, and displacement of the entire eyeball. For each point in the central area of the corneal profile, the maximum velocities of mutual slope changes accompanying the applanations were estimated. The times of their occurrence were adopted as buckling times.
resultsThe propagation of buckling along the corneal profile is presented, as well as the repeatability and mutual correlations between the buckling parameters and intraocular pressure. Based on the relationship between them, a new parameter describing corneal hysteresis:
conclusionThe results show for the first time how to measure the corneal buckling and viscoelastic effects with Corvis ST.
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