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Obstrucción del conducto lagrimal - Overview

Nombres alternativos

Conducto nasolagrimal obstruido; Dacriostenosis; Obstrucción del conducto nasolagrimal

Definición:

Es un bloqueo parcial o completo en el conducto que transporta las lágrimas desde la superficie del ojo hasta la nariz.

Causas, incidencia y factores de riesgo:

Constantemente se están produciendo lágrimas para ayudar a proteger la superficie del ojo. Éstas drenan hacia un conducto lagrimal a través de una abertura muy pequeña en la esquina del ojo, cerca de la nariz. Esta abertura se denomina conducto nasolagrimal. Si este conducto se bloquea, las lágrimas se acumularán y se derramarán por las mejillas, incluso cuando usted no esté llorando.

En los niños, es posible que este conducto no esté completamente desarrollado al nacer. Puede estar cerrado o cubierto por una delgada película, lo que causa un bloqueo parcial.

En los adultos, el conducto puede resultar dañado por una infección, una lesión o un tumor.

  • Reviewed last on: 7/26/2010
  • Neil K. Kaneshiro, MD, MHA, Clinical Assistant Professor of Pediatrics, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

Referencias

Olitsky SE, Hug D, Smith LP. Disorders of the lacrimal system. In: Kliegman RM, Behrman RE, Jenson HB, Stanton BF, eds. Nelson Textbook of Pediatrics. 18th ed. Philadelphia, Pa: Saunders Elsevier;2007:chap 624.

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