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New Approach to the Analysis of Raw Data from the Ocular Response Analyzer

PURPOSE: The aim of this research was to present a new approach for the potential characteristics of the anterior eye, based on numerical analysis of the raw data from multiple measurements on 1 eye captured with use of the Ocular Response Analyzer (ORA). METHODS: The measurements were carried out 6...

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Detalles Bibliográficos
Autores principales: Jóźwik, Agnieszka, Kasprzak, Henryk, Kuczma, Marta
Formato: Online Artículo Texto
Lenguaje:English
Publicado: S. Karger AG 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6945948/
https://www.ncbi.nlm.nih.gov/pubmed/31988891
http://dx.doi.org/10.1159/000452124
Descripción
Sumario:PURPOSE: The aim of this research was to present a new approach for the potential characteristics of the anterior eye, based on numerical analysis of the raw data from multiple measurements on 1 eye captured with use of the Ocular Response Analyzer (ORA). METHODS: The measurements were carried out 6 times on every eye, one by one, on 29 patients using the ORA. Dependencies between values of 6 applanation pressures P<sub>1</sub> and P<sub>2</sub> from 1 eye and the new proposed time-dependent parameters sm and smm, obtained from the raw data, were used to determine new characteristic features of the anterior eye. RESULTS: Obtained values for multiple applanation pressures P<sub>1</sub> and P<sub>2</sub> and their average value P<sub>a</sub> from all measurements on 1 eye show strong linear dependencies with the new proposed time-dependent parameter smm. CONCLUSIONS: The new parameters based on slope coefficients a<sub>1</sub> and a<sub>2</sub>, their difference Δa, and respective y-intercept values b<sub>1</sub>, b<sub>2</sub>, and Δb show some characteristic stability for a multiply measured eye and can be used for its characterization. These parameters can be used for differentiation of the eyes with higher accuracy than those obtained from a single measurement. They are likely related to some biomechanical properties of the anterior eye.