Congenital Anomalies of the Nasolacrimal Duct Workup

Updated: Mar 22, 2016
  • Author: Mounir Bashour, MD, PhD, CM, FRCSC, FACS; Chief Editor: Hampton Roy, Sr, MD  more...
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Workup

Imaging Studies

See the list below:

  • Intubation dacryocystography
  • Scintillography
  • Three-dimensional high-resolution CT imaging: To characterize anatomical abnormalities of the distal nasolacrimal duct (NLD) by providing evidence of a bony or membranous obstruction at the distal portion of the NLD or of a postductal obstruction at the inferior meatus in children [4]
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Other Tests

See the list below:

  • Fluorescein dye disappearance test - Grade as good, fair, or poor clearance
  • Jones dye tests - Not as useful in practice with small children
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Histologic Findings

Punctal agenesis is usually associated with the absence of underlying canalicular tissue in 86% of cases in one series.

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