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Características de la superficie ocular y su asociación con el ajuste de lentes de contacto blandos
Javier Rojas Viñuela1, James S Wolffsohn2, Alejandra Consejo3
1Natural Optics Balaguer, Lleida, Spain.
Resumen
El ajuste suave de las lentes de contacto está influenciado por la unión corneoscleral, no solo por la altura sagital. Los parámetros oculares periféricos, especialmente las pendientes en los cuadrantes superior e inferior, son clave para el ajuste óptimo de las lentes de contacto blandas.
Área de la Ciencia:
- Oftalmología
- Ingeniería biomédica
- Optometría
Sus antecedentes:
- El ajuste de lentes de contacto suaves es crucial para la agudeza visual y la salud ocular.
- Comprender la relación entre la topografía de la superficie ocular y el ajuste de la lente es esencial para mejorar el diseño de la lente y los resultados del paciente.
Objetivo del estudio:
- Para analizar las asociaciones entre los parámetros de la forma de la superficie ocular y el ajuste de lentes de contacto blandos.
- Investigar el papel de los parámetros de la unión córneo-escleral (JSC) en el movimiento de las lentes de contacto blandas (LCM).
Principales métodos:
- Análisis retrospectivo de 106 ojos equipados con lentes blandas de hidrogel de silicona estándar.
- Análisis de ajuste del objetivo utilizando software patentado y perfilador de superficie ocular para parámetros corneoesclerales.
- Caracterización del delta-sag (δ-sag) como la relación entre la altura sagital ocular (OC-SAG) y el cristalino (CL-SAG).
Principales resultados:
- No se encontró una correlación significativa entre la deformación δ y las características de ajuste de la lente.
- Diferencias estadísticamente significativas en el ángulo de unión corneoscleral (ACC) y las pendientes periféricas de córnea/esclerótica entre los ojos derecho e izquierdo.
- Asociaciones moderadas a fuertes entre el ajuste del lente y los parámetros oculares periféricos, aunque no consistentes entre los ojos.
Conclusiones:
- El movimiento de las lentes de contacto blandas está influenciado por la transición corneoscleral, particularmente en los cuadrantes superior e inferior.
- Centrarse en las pendientes periféricas es más beneficioso para el ajuste de lentes de contacto blandos que los parámetros de la córnea central o la altura sagital.
- La topografía asimétrica de la superficie ocular puede afectar la consistencia del ajuste de las lentes de contacto blandas entre los ojos.
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