[Central corneal thickness in a healthy Spanish population]. / Espesor corneal central en una población sana española.

OBJECTIVE: To study the central corneal thickness of a Spanish population group and determine the influence of age, gender, axial length and refractive error on central corneal thickness (CCT) values. METHODS: An observational, cross-sectional, double masked study was conducted on 357 eyes of consecutive Caucasian patients without ophthalmic disease. They were distributed according to age, and high refractive defects were excluded. Ultrasonic pachymetry and a complete eye examination were performed on all patients. The relationship between the central corneal thickness values and variables of age, refractive error, axial length and gender was assessed. RESULTS: The mean central corneal thickness was 548.21 µm with a standard deviation (SD) of 30.7 µm (range 464 to 633 µm). The normal central corneal thickness value of the population studied was 486.81 to 609.61 µm (95% confidence interval). No statistical association was found between central corneal thickness values and variables of age, refractive error, axial length and gender. CONCLUSIONS: Central corneal thickness varies according to race. We have analysed, for the first time, normal central corneal thickness values of a healthy Spanish population.

Espesor corneal central en una población sana española / Central corneal thickness in a healthy Spanish population

Objetivo: Estudiar el valor del espesor corneal central (ECC) en población sana española y surelación con la edad, el sexo, la longitud axial y la refracción.Método: En este estudio observacional transversal enmascarado incluimos pacientes consecutivosde raza caucásica, sin enfermedad ocular conocida. Se seleccionó un total de 357ojos, repartidos homogéneamente por décadas etarias, excluyendo defectos de refracciónaltos. Se realizó una paquimetría ultrasónica central de múltiples tomas y una exploraciónoftalmológica completa por el mismo evaluador. Se analizaron los valores medios de ECC,edad, refracción y longitud axial y la relación existente entre el ECC y la longitud axial, elsexo, la edad y el defecto refractivo.Resultados: El espesor corneal central medio obtenido (media +/- desviación estándar) fue548,21 +/- 30,7 m con un rango de 464 a 633 m. El valor normal del espesor corneal centralen nuestra población fue de 486,81 a 609,61m (intervalo de confianza del 95%). No seencontró asociación estadística entre el ECC y la edad, el sexo, la longitud axial ni el defectorefractivo.Conclusión: El espesor corneal central es un parámetro que presenta variación racial. Este esel primer estudio que aporta valores normales de espesor corneal central en población sanaespañola(AU)

Objective: To study the central corneal thickness of a Spanish population group and determinethe influence of age, gender, axial length and refractive error on central cornealthickness (CCT) values.Methods: An observational, cross-sectional, double masked study was conducted on 357eyes of consecutive Caucasian patients without ophthalmic disease. They were distributedaccording to age, and high refractive defects were excluded. Ultrasonic pachymetry and a complete eye examination were performed on all patients. The relationship betweenthe central corneal thickness values and variables of age, refractive error, axial length andgender was assessed.Results: The mean central corneal thickness was 548.21 mwith a standard deviation (SD) of30.7 m(range 464 to 633 m). The normal central corneal thickness value of the populationstudied was 486.81 to 609.61 m (95% confidence interval). No statistical association wasfound between central corneal thickness values and variables of age, refractive error, axiallength and gender.Conclusions: Central corneal thickness varies according to race. We have analysed, for thefirst time, normal central corneal thickness values of a healthy Spanish population(AU)