- You will have a routine eye exam to check the status of the epiphora. The same eye tests will be performed as at screening. However, the routine procedure called "probing and irrigation" (a test of the tear ducts, involving water) may not need to be repeated. The probing and irrigation procedure will only be performed if the epiphora seems to have gotten worse. In that case, the probing and irrigation procedure will help the doctor decide whether to recommend that you consider additional treatments.