| Título: | Characterization of Corneoscleral Geometry Using Fourier Transform Profilometry in the Healthy Eye |
| Autores: | Piñero, David Pablo ; Martínez Abad, Antonio ; Soto Negro, Roberto ; Ariza Gracia, Miguel Ángel ; Carracedo Rodríguez, Juan Gonzalo |
| Tipo de documento: | texto impreso |
| Editorial: | Contact Lens Association of Ophthalmologists, Inc., 2019-05 |
| Dimensiones: | application/pdf |
| Nota general: | info:eu-repo/semantics/restrictedAccess |
| Idiomas: | |
| Palabras clave: | Estado = Publicado , Materia = Ciencias Biomédicas: Óptica y optometría: Óptica oftálmica , Materia = Ciencias Biomédicas: Óptica y optometría: Anatomía ocular , Materia = Ciencias Biomédicas: Óptica y optometría: Óptica geométrica e instrumental , Tipo = Artículo |
| Resumen: |
Objective: To characterize peculiarities of the corneoscleral geometry in healthy eyes. Methods: This is a prospective case series including 88 healthy eyes of 88 patients with an age ranging from 21 to 73 years. A complete ocular examination was performed with emphasis on the analysis of the corneoscleral topographic profile with the Fourier transform profilometer Eye Surface Profiler (Eaglet-Eye BV, Houten, the Netherlands). The distribution of different topographic parameters was evaluated, as well as the correlations between corneal and scleroconjunctival parameters. Results: Mean values of 8.64±0.37 (range, 7.81–9.50 mm), 6.06±0.52 (4.88–7.63 mm) and 11.93±1.32 mm (8.17–15.89 mm) were obtained for inner, limbal, and outer best-fit sphere, respectively. Mean values of 8.54±0.38 (7.86–9.66 mm) and 13.35±1.29 mm (11.05–17.31 mm) were obtained for mean corneal and scleral radius, respectively. Regarding tangent angles at limbus, mean values of 35.31±6.55°, 38.76±5.90°, 32.75±7.04°, and 25.91±8.99° were obtained for nasal, temporal, superior, and inferior angles, respectively. Mean difference between temporal and nasal sagittal heights increased from ?1.48±120.70 ?m for a chord of 11 mm to 73.53±236.55 ?m for a chord of 14 mm. A weak but statistically significant correlation was found between corneal and scleral radii (r=0.325, P=0.004). The maximum sagittal height for a diameter of 12 mm was significantly correlated with flattest keratometry, astigmatism, corneal diameter, and corneal eccentricity (R2: 0.77, P Conclusions: The scleroconjunctival surface in the healthy eye presents some level of nasotemporal asymmetry that is higher with increasing diameters of analysis. |
| En línea: | https://eprints.ucm.es/55838/1/Carracedo_Characterization%20of%20Corneoscleral%20Geometry%20Using%20Fourier%20Transform%20Profilometry%20in%20the%20Healthy%20Eye.pdf |
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