Skip to content

Eye Health Center

Font Size

Blocked Tear Ducts: Dye Disappearance Test - Topic Overview

A fluorescein dye disappearance test is used in children and adults to find out whether tears are draining normally from the eyes into the nose.

  • One drop of a special dye (fluorescein) or a paper strip containing the dye is placed between the eyelid and the eye.
  • After 10 to 15 minutes, the doctor looks in your eye using a blue light. The light can detect very small amounts of fluorescent dye. The doctor may also use the light to look in your throat and inside your nose.

Normally, tears sweep the dye out of the eye and into the tear ducts. If dye stays in the eye, the tear duct may be blocked.

Recommended Related to Eye Health

An Overview of Refractive and Laser Eye Surgery

Vision correction surgery, also called refractive and laser eye surgery, is any surgical procedure used to correct vision problems. In recent years, tremendous advancements have been made in this field. After refractive and laser eye surgery, many patients report seeing better than they had at any other time in their lives. Most types of vision correction surgery work by reshaping the cornea, or clear front part of the eye, so that light traveling through it is properly focused onto the retina...

Read the An Overview of Refractive and Laser Eye Surgery article > >

Both eyes are usually tested and compared during this test, which is done after other exams have not clearly shown that the duct is blocked.

A baby may fuss and cry during this test. Parents are often asked to hold and soothe their child while he or she is being tested.

    WebMD Medical Reference from Healthwise

    Last Updated: October 09, 2013
    This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.
    1
    Next Article:

    Blocked Tear Ducts: Dye Disappearance Test Topics

    Today on WebMD

    Woman holding tissue to reddened eye
    Learn about causes, symptoms, and treatments.
    eye
    Simple annoyance or the sign of a problem?
     
    red eyes
    Symptoms, triggers, and treatments.
    blue eye with contact lens
    Tips for wearing and caring.
     
    Understanding Stye
    Article
    human eye
    Article
     
    eye
    Video
    eye exam timing
    Video
     
    vision test
    Tool
    is vision correction surgery for you
    Article
     
    high tech contacts
    Article
    eye drop
    Article
     

    Special Sections