Apatient comes to the ophthalmologist’s office complaining of excess tearing. the ophthalmologist orders a radiographic imaging of the nasolacrimal glands and ducts to determine the cause

Explanation:

Dacryocystography is the radiographic examination of the lacrimal sacs and all associated structures. The image attached is a conventional dacryocystograhpy. As you can observe, using Dacryocystography, doctor can examine the nasolacrimal sacs and ducs, which is mandatory to explain the excess of tearing.

Actually, that excess of tearing can be for excessive fluid production, or obstruction of the ducts. Either way, the patient has to be examine by a doctor.

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