Measuring nasolacrimal duct volume using computed tomography images in nasolacrimal duct obstruction patients in Korean

Jin Hwan Park, Jung Ah Huh, Jun Feng Piao, Hwa Lee, Se Hyun Baek

Research output: Contribution to journalArticle

1 Citation (Scopus)


● AIM: To investigate nasolacrimal duct (NLD) volume in Korean patients and to examine the correlation between NLD volume and obstruction. ● METHODS: Of patients who underwent orbital computed tomography from March 2013 to January 2016, patients diagnosed with NLD obstruction were classified into the patient group and patients without obstruction were classified into the control group. The NLD volume was measured using the Image J program, which showed the NLD in axial, coronal, and sagittal images on computed tomography. ● RESULTS: The average value of men’s NLD volume, 265.33±90.57 mm3, was significantly larger than women’s, 211.87±68.61 mm3 (P=0.009). In the patient group, the NLD volume of the obstructed eyes, 242.49±82.93 mm3, and the non-obstructed eyes, 225.20±73.20 mm3, were significantly higher than the control group, 217.61±82.04 mm3 (P<0.001, P<0.001). ● CONCLUSION: The NLD volume is larger in men than in women in Korean adults. If there is NLD obstruction in women, the NLD volume is larger and it is judged that inflammatory reaction caused a chronic change in the bone around the NLD and affect the measurement of NLD volume.

Original languageEnglish
Pages (from-to)100-105
Number of pages6
JournalInternational Journal of Ophthalmology
Issue number1
Publication statusPublished - 2019 Jan 1



  • Computed tomography
  • Nasolacrimal duct obstruction
  • Nasolacrimal duct volume

ASJC Scopus subject areas

  • Ophthalmology

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