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: Article (Published version)
Área (Departamento): Área Física Aplicada (Dpto. Física Aplicada)
You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. You may not use the material for commercial purposes. If you remix, transform, or build upon the material, you may not distribute the modified material.
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: Article (Published version)
Área (Departamento): Área Física Aplicada (Dpto. Física Aplicada)
You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. You may not use the material for commercial purposes. If you remix, transform, or build upon the material, you may not distribute the modified material. Exportado de SIDERAL (2024-11-22-12:00:51)
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Record created 2023-03-23, last modified 2024-11-25