A Dacrocystogram is an x-ray examination of the nasolacrimal drainage system, or tear duct. The examination uses x-ray contrast to demonstrate the anatomical structures of this system. A Dacrocystogram is predominantly used to examine possible reasons for blockage of the drainage system associated with the tear duct.
- A member of staff will explain the examination and answer any questions that you may have.
- You will be required to lie on a x-ray table for the examination. You will then be administered a couple of anaesthetic eye drops in the eye that is being investigated.
- Due to the effect of the anaesthetic only one eye can be examined on one day and you will need someone to drive you home after the examination.
- The Radiologist inserts a small blunt cannula (tube) into the opening of the tear duct and a small amount of x-ray contrast is injected. This is not painful, however you may experience a taste in the back of your mouth as the contrast drains naturally.
- Images are taken with your head in various positions to visualise all the relevant anatomy.
- The test takes about 30 minutes.