Canalicular Laceration Workup

Updated: Sep 24, 2014
  • Author: Louise A Mawn, MD; Chief Editor: Hampton Roy, Sr, MD  more...
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Workup

Laboratory Studies

Laboratory studies only include those needed by emergency trauma care providers. The lacrimal system laceration does not require laboratory studies.

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Imaging Studies

In any patient with suspected orbital or midface fractures, orbital computed tomography should be obtained in the axial and coronal planes as fine cuts 2 mm apart. If an optic canal fracture is suspected, the ophthalmologist must ensure that the images are obtained with negative angulation to ensure that the optic canals are well visualized.

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Other Tests

Although not used in the acute setting, dacryocystogram can confirm a disruption of the lacrimal drainage system.

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Procedures

Injection of air, water, or various solutions (eg, fluorescein) has been recommended in locating the medial aspect of the canaliculus. The use of magnification by either surgical loupes or the operating microscope usually allows for visualization of the white cuff of the severed canaliculus.

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