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Related Experiment Videos

Computed tomography in lacrimal outflow obstruction

J E Kallman1, J A Foster, A E Wulc

  • 1The Hospital of the University of Pennsylvania, Philadelphia, USA.

Ophthalmology
|April 1, 1997
PubMed
Summary

Acquired nasolacrimal duct obstruction is frequently linked to sinus and nasal conditions. CT scans revealed a significant association between these conditions, suggesting a common etiology and the need for evaluating sinus health in patients with blocked tear ducts.

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Area of Science:

  • Ophthalmology
  • Otorhinolaryngology
  • Radiology

Background:

  • Acquired nasolacrimal duct obstruction is a common ophthalmologic issue.
  • Its etiology is often unclear, despite available treatments.
  • The nasolacrimal system's proximity to nasal and sinus structures suggests a potential link to sinorhinologic diseases.

Purpose of the Study:

  • To investigate the association between acquired nasolacrimal duct obstruction and sinorhinologic abnormalities.
  • To determine if CT scan findings of sinus disease correlate with nasolacrimal duct obstruction.

Main Methods:

  • Coronal computed tomography (CT) scans were used to evaluate 23 patients with acquired nasolacrimal duct obstruction and 100 controls.
  • Specific sinorhinologic findings assessed included ostiomeatal complex disease, ethmoidal opacification, agger nasi cell opacification, concha bullosa, and nasal septal deviation.

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Main Results:

  • 87% of patients with nasolacrimal duct obstruction showed at least one sinorhinologic abnormality, compared to 63% of controls (P < 0.05).
  • A statistically significant higher incidence of ethmoidal opacification, agger nasi cell opacification, and nasal septal deviation was found in the obstruction group.
  • No significant difference was observed in ostiomeatal complex disease or concha bullosa between groups.

Conclusions:

  • CT findings indicate a correlation between sinorhinologic disease and acquired nasolacrimal duct obstruction.
  • This association suggests that sinorhinologic disorders may contribute to lacrimal outflow obstruction, similar to their role in sinus disease.
  • Physicians should consider evaluating for concomitant nasal and sinus disease in patients presenting with acquired nasolacrimal duct obstruction.