Lacrimal drainage scintigraphy

This study uses a gamma camera to follow the passage of a drop of radio-labelled fluid

Figure 10.18 A typically dilated canaliculus in a patient with Actinomyces canaliculitis.

(usually Technetium 99) from the conjunctival sac to the nasal passages, and provides a measure of physiological tear clearance where there is a patent system on clinical

Figure 10.19 Lacrimal scintigraphy showing a normal right drainage pattern but a marked delay in the exit of tracer from the left lacrimal sac.

examination or dacryocystography (Figure 10.19). In this situation, scintigraphy will generally reveal whether there is a failure of gathering of tears into the drainage system (often due to lid anomalies), or a failure of clearance of tears that are otherwise rapidly entering the system from the tear lake.

Was this article helpful?

0 0
How To Reduce Acne Scarring

How To Reduce Acne Scarring

Acne is a name that is famous in its own right, but for all of the wrong reasons. Most teenagers know, and dread, the very word, as it so prevalently wrecks havoc on their faces throughout their adolescent years.

Get My Free Ebook

Post a comment