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Examen con lámpara de hendidura - Overview

Nombres alternativos

Biomicroscopia

Definición:

Examina las estructuras que se encuentran en la parte frontal del ojo.

Forma en que se realiza el examen:

La lámpara de hendidura es un microscopio de bajo poder combinado con una fuente de luz de alta intensidad que puede enfocarse para emitir un rayo delgado.

Usted se sienta en una silla con el instrumento colocado frente a usted. Se le pide apoyar la barbilla y la frente sobre un soporte que le mantiene la cabeza inmóvil.

El médico examinará luego los ojos, especialmente los párpados, la córnea, la conjuntiva, la esclerótica y el iris. Con frecuencia, se utilizará un tinte amarillo (fluoresceína) para ayudar a examinar la córnea y la capa de lágrimas. El tinte se puede agregar ya sea como una gota o el médico puede tocar la esclerótica del ojo con una fina tira de papel teñida con el colorante. El tinte se enjuga por fuera de éste con las lágrimas a medida que usted parpadea.

Luego, se colocan gotas en los ojos para ensanchar (dilatar) las pupilas. Las gotas se demoran aproximadamente de 15 a 20 minutos para hacer efecto. Luego, se repite el examen con la lámpara de hendidura usando otro lente pequeño, sostenido cerca del ojo, de manera que se pueda evaluar la parte posterior de éste.

Preparación para el examen:

No se necesita preparación especial para este examen.

Lo que se siente durante el examen:

Si se utilizan gotas dilatadoras, los ojos estarán sensibles a la luz durante unas pocas horas después del examen.

Razones por las que se realiza el examen:

El procedimiento se utiliza para examinar:

  • Reviewed last on: 2/10/2011
  • Linda J. Vorvick, MD, Medical Director, MEDEX Northwest Division of Physician Assistant Studies, University of Washington School of Medicine; and Franklin W. Lusby, MD, Ophthalmologist, Lusby Vision Institute, La Jolla, California. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

Referencias

Fellman RL, Spaeth GL. Gonioscopy. In: Tasman W, Jaeger EA, eds. Duane's Ophthalmology. 15th ed. Philadelphia, Pa: Lippincott Williams & Wilkins; 2009:chap 44.

Colenbrander A. Principles of Ophthalmology. In: Tasman W, Jaeger EA, eds. Duane's Ophthalmology. 15th ed. Philadelphia, Pa: Lippincott Williams & Wilkins; 2009:chap 63.

American Academy of Ophthalmology Preferred Practice Patterns Committee: Preferred Practice Pattern Guidelines. Comprehensive Adult Medical Eye Evaluation. San Francisco, CA: American Academy of Ophthalmology, 2010. Accessed January 17, 2011.

Miller D, Thall EH, Atebara NH. Ophtalmic instrumentation. In: Yanoff M, Duker JS, eds. Ophthalmology. 3rd ed. St. Louis, MO: Mosby Elsevier;2008:chap 2.10.

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