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Retina - Información general

Definición:

Es la capa de tejido sensible a la luz que se encuentra en la parte posterior interna del ojo y actúa como la película en una cámara: las imágenes pasan a través del cristalino del ojo y son enfocadas en la retina. La retina convierte luego estas imágenes en señales eléctricas y las envía a través del nervio óptico al cerebro.

La retina normalmente es de color rojo debido a su abundante suministro de sangre. Un oftalmoscopio le permite al médico ver a través de la pupila y el cristalino hasta la retina. Si el médico observa cualquier cambio en el color o apariencia de la retina, esto puede ser indicio de una enfermedad.

Cualquier persona que experimente cambios en la percepción de la nitidez o del color, destellos de luces, moscas volantes o distorsión en la visión debe hacerse examinar la retina.

  • Fecha de revisión: 8/17/2007
  • Versión en inglés revisada por:Manju Subramanian, MD, Assistant Professor in Ophthalmology, Vitreoretinal Disease and Surgery, Boston University Eye Associates, Boston, MA. Review provided by VeriMed Healthcare Network.
  • Traducción y localización realizada por: DrTango, Inc

Referencias

Yanoff M, Duker JS, Augsburger JJ, et al. eds. Ophthalmology. 2nd ed. St. Louis, Mo: Mosby; 2004:34.

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