Corneoscleral junction angle in healthy eyes assessed objectively
Consejo, Alejandra (Universidad de Zaragoza) ; Rojas-Viñuela, Javier ; Sebastian-Carmona, Javier ; Ezpeleta, Julio ; Piñero, David P.
Resumen: Purpose
To introduce a fully objective method to measure corneoscleral junction (CSJ) angle and evaluate the CSJ angle in healthy eyes.
Methods
Corneoscleral topography (Eye Surface Profiler, ESP) was acquired from the right eye of 105 healthy Caucasian subjects, ranging from 18 to 59 years old. From the raw anterior eye height data, the topographic limbus was automatically demarcated in 360 semi-meridians. Further, in limbal location, the CSJ angle was automatically calculated from corneoscleral height data using neighbouring auxiliary points for angle calculation. Additionally, CSJ angle was statistically analysed regionally.
Results
The mean CSJ angle was 177.5 ± 1.1°. There is a mean difference of 7.7 ± 3.7° between the steepest (smallest) and flattest (largest) CSJ angle within the same eye. There exist statistically significant differences between temporal (178.2 ± 1.4°) and nasal (176.4 ± 1.1°) regions (paired t-test, p < 0.001), and between superior (178.1 ± 1.1°) and inferior (177.9 ± 1.1°) regions (p = 0.038). CSJ angle is correlated with limbus position (r = 0.43, p < 0.001).
Conclusion
CSJ angle is rotationally asymmetric. CSJ varies regionally, being the smallest (steepest) in the nasal region. Significant rough changes in CSJ angle were observed for some healthy individuals.
Idioma: Inglés
DOI: 10.1016/j.clae.2023.101815
Año: 2023
Publicado en: CONTACT LENS & ANTERIOR EYE (2023), 101815 [5 pp.]
ISSN: 1367-0484
Factor impacto JCR: 4.1 (2023)
Categ. JCR: OPHTHALMOLOGY rank: 12 / 95 = 0.126 (2023) - Q1 - T1
Factor impacto CITESCORE: 7.6 - Optometry (Q1) - Ophthalmology (Q1)
Factor impacto SCIMAGO: 1.279 - Medicine (miscellaneous) (Q1) - Optometry (Q1) - Ophthalmology (Q1)
Tipo y forma: Artículo (Versión definitiva)
Área (Departamento): Área Física Aplicada (Dpto. Física Aplicada)
Debe reconocer adecuadamente la autoría, proporcionar un enlace a la licencia e indicar si se han realizado cambios. Puede hacerlo de cualquier manera razonable, pero no de una manera que sugiera que tiene el apoyo del licenciador o lo recibe por el uso que hace. No puede utilizar el material para una finalidad comercial. Si remezcla, transforma o crea a partir del material, no puede difundir el material modificado.
Exportado de SIDERAL (2024-11-22-12:00:51)
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To introduce a fully objective method to measure corneoscleral junction (CSJ) angle and evaluate the CSJ angle in healthy eyes.
Methods
Corneoscleral topography (Eye Surface Profiler, ESP) was acquired from the right eye of 105 healthy Caucasian subjects, ranging from 18 to 59 years old. From the raw anterior eye height data, the topographic limbus was automatically demarcated in 360 semi-meridians. Further, in limbal location, the CSJ angle was automatically calculated from corneoscleral height data using neighbouring auxiliary points for angle calculation. Additionally, CSJ angle was statistically analysed regionally.
Results
The mean CSJ angle was 177.5 ± 1.1°. There is a mean difference of 7.7 ± 3.7° between the steepest (smallest) and flattest (largest) CSJ angle within the same eye. There exist statistically significant differences between temporal (178.2 ± 1.4°) and nasal (176.4 ± 1.1°) regions (paired t-test, p < 0.001), and between superior (178.1 ± 1.1°) and inferior (177.9 ± 1.1°) regions (p = 0.038). CSJ angle is correlated with limbus position (r = 0.43, p < 0.001).
Conclusion
CSJ angle is rotationally asymmetric. CSJ varies regionally, being the smallest (steepest) in the nasal region. Significant rough changes in CSJ angle were observed for some healthy individuals.
Idioma: Inglés
DOI: 10.1016/j.clae.2023.101815
Año: 2023
Publicado en: CONTACT LENS & ANTERIOR EYE (2023), 101815 [5 pp.]
ISSN: 1367-0484
Factor impacto JCR: 4.1 (2023)
Categ. JCR: OPHTHALMOLOGY rank: 12 / 95 = 0.126 (2023) - Q1 - T1
Factor impacto CITESCORE: 7.6 - Optometry (Q1) - Ophthalmology (Q1)
Factor impacto SCIMAGO: 1.279 - Medicine (miscellaneous) (Q1) - Optometry (Q1) - Ophthalmology (Q1)
Tipo y forma: Artículo (Versión definitiva)
Área (Departamento): Área Física Aplicada (Dpto. Física Aplicada)
Debe reconocer adecuadamente la autoría, proporcionar un enlace a la licencia e indicar si se han realizado cambios. Puede hacerlo de cualquier manera razonable, pero no de una manera que sugiera que tiene el apoyo del licenciador o lo recibe por el uso que hace. No puede utilizar el material para una finalidad comercial. Si remezcla, transforma o crea a partir del material, no puede difundir el material modificado.Exportado de SIDERAL (2024-11-22-12:00:51)
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Artículos > Artículos por área > Física Aplicada
Registro creado el 2023-03-23, última modificación el 2024-11-25