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¿Sabes si tienes visión 20/20?

Usted recuerda cuándo fue la última vez que acudió a una revisión ocular y si el especialista empleó el término de medición 20/20 al practicarle el examen de la vista. Dicho test es una prueba que consiste en una cartilla con letras mayúsculas que tienen un tamaño decreciente y por lo regular consta de 11 líneas de letras, fue diseñado por el oftalmólogo Hermann Snellen y determina la agudeza visual de cada paciente, es decir, su capacidad para distinguir objetos con claridad a larga distancia.




José Luis Monroy* / Colaboración para Revista GM5

Agudeza visual

Contar con una visión 20/20, no significa una visión perfecta, sino normal, pues cuando el especialista refiere dicha medición, significa qué tan bien pueden ver los ojos del paciente un objeto a una distancia de 20 pies o 6 metros en comparación con otras personas que no ven adecuadamente por un problema refractivo como miopía, hipermetropía, astigmatismo o por otra causa.

Giro 180º: visión cercana

Ahora bien, al llegar a la edad de 40 y 45 años es probable que la visión lejana no presente un cambio significativo, pero nuestra visión cercana sí se vea modificada debido a nuestro lente interno de los ojos llamado cristalino, el cual, pierde la flexibilidad y provoca la dificultad de enfocar objetos de cerca.

Dicha condición se le denomina presbicia o comúnmente conocida como vista cansada. No hay de que preocuparse, pues por fortuna se puede corregir con un procedimiento no invasivo, conocido como tratamiento de Visión Verdadera (TVT, por sus siglas en inglés).

El TVT es una innovación tecnológica desarrollada por investigadores mexicanos y estadounidenses, que consiste en el diseño de lentes de contacto personalizados, aunado a una solución oftálmica única en su tipo; ambos elementos contribuyen para que las personas présbitas logren ver de cerca, sin comprometer su visión de lejos.

Es necesario que las personas visiten periódicamente a los especialistas en el cuidado de la salud visual si no están viendo 20/20 y sí además su visión cercana se ha visto modificada.

*Presidente/ fundador de la Asociación Latinoamericana de Lentes de Contacto y Córnea.

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