Tags

Type your tag names separated by a space and hit enter

Scaling the punctum and canaliculus in patients undergoing punctoplasty surgery: A prospective cohort study.
Orbit 2017; 36(6):436-440O

Abstract

Optical Coherence Tomography (OCT) is a safe and non-invasive method of high-resolution cross-sectional imaging of tissue microstructures using infrared radiation. This study investigates how the appearance of the punctum and proximal canaliculus differs pre- and post-operatively in patients undergoing punctoplasty surgery. Patients with symptomatic punctal stenosis warranting punctoplasty surgery were prospectively invited to enrol from a single centre. Spectral OCT images of the lower punctae were captured with a Topcon 3D OCT 2000 machine pre- and post-operatively (at their follow-up appointment). Measurements were made of the maximal punctal diameter, canalicular diameter and canalicular depth. Pre- and post-operative measurements were compared using a paired t-test. Twenty-three punctae of 18 patients with punctal stenosis were included in the study. They were 10 males and 8 females with a median age 71.0 (SD 12.1). Mean canalicular cross-sectional area was 56.9 × 10-3 mm2 pre-operatively and 267.2 × 10-3 mm2 post-operatively, showing a statistically significant increase (p = 0.0004). There was an increase in both mean canalicular width (0.253 to 0.524mm (p = 0.0001)) and depth (0.433 to 0.852mm (p = 0.0001)) from pre- to post-operatively. There was a significant improvement in symptoms from pre- to post-operatively, as measured subjectively by the Lac-Q questionnaire (p = 0.021). This study describes the change in the appearance of the punctum and proximal canaliculus in patients undergoing punctoplasty operations, by using spectral OCT to capture in vivo high-resolution images. It demonstrates that punctal OCT can be successfully applied to quantify the morphological changes of the punctum and canaliculus pre- and post-punctoplasty.

Authors+Show Affiliations

a Moorfield's Eye Unit at Bedford Hospital , Bedford , United Kingdom.a Moorfield's Eye Unit at Bedford Hospital , Bedford , United Kingdom.a Moorfield's Eye Unit at Bedford Hospital , Bedford , United Kingdom.a Moorfield's Eye Unit at Bedford Hospital , Bedford , United Kingdom.a Moorfield's Eye Unit at Bedford Hospital , Bedford , United Kingdom.a Moorfield's Eye Unit at Bedford Hospital , Bedford , United Kingdom.a Moorfield's Eye Unit at Bedford Hospital , Bedford , United Kingdom. b NIHR Biomedical Research Centre at Moorfields Eye Hospital, and the UCL Institute of Ophthalmology , London , United Kingdom.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

28812407

Citation

Nesaratnam, Nisha, et al. "Scaling the Punctum and Canaliculus in Patients Undergoing Punctoplasty Surgery: a Prospective Cohort Study." Orbit (Amsterdam, Netherlands), vol. 36, no. 6, 2017, pp. 436-440.
Nesaratnam N, Emeriewen K, Smith J, et al. Scaling the punctum and canaliculus in patients undergoing punctoplasty surgery: A prospective cohort study. Orbit. 2017;36(6):436-440.
Nesaratnam, N., Emeriewen, K., Smith, J., David, B., Wawrzynski, J., Sharma, A., & Saleh, G. M. (2017). Scaling the punctum and canaliculus in patients undergoing punctoplasty surgery: A prospective cohort study. Orbit (Amsterdam, Netherlands), 36(6), pp. 436-440. doi:10.1080/01676830.2017.1343857.
Nesaratnam N, et al. Scaling the Punctum and Canaliculus in Patients Undergoing Punctoplasty Surgery: a Prospective Cohort Study. Orbit. 2017;36(6):436-440. PubMed PMID: 28812407.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Scaling the punctum and canaliculus in patients undergoing punctoplasty surgery: A prospective cohort study. AU - Nesaratnam,Nisha, AU - Emeriewen,Krisztina, AU - Smith,Julie, AU - David,Beena, AU - Wawrzynski,James, AU - Sharma,Anant, AU - Saleh,George M, Y1 - 2017/08/16/ PY - 2017/8/16/pubmed PY - 2018/7/17/medline PY - 2017/8/17/entrez KW - Optical coherence tomography KW - punctal stenosis KW - punctoplasty KW - punctum and proximal canaliculus SP - 436 EP - 440 JF - Orbit (Amsterdam, Netherlands) JO - Orbit VL - 36 IS - 6 N2 - Optical Coherence Tomography (OCT) is a safe and non-invasive method of high-resolution cross-sectional imaging of tissue microstructures using infrared radiation. This study investigates how the appearance of the punctum and proximal canaliculus differs pre- and post-operatively in patients undergoing punctoplasty surgery. Patients with symptomatic punctal stenosis warranting punctoplasty surgery were prospectively invited to enrol from a single centre. Spectral OCT images of the lower punctae were captured with a Topcon 3D OCT 2000 machine pre- and post-operatively (at their follow-up appointment). Measurements were made of the maximal punctal diameter, canalicular diameter and canalicular depth. Pre- and post-operative measurements were compared using a paired t-test. Twenty-three punctae of 18 patients with punctal stenosis were included in the study. They were 10 males and 8 females with a median age 71.0 (SD 12.1). Mean canalicular cross-sectional area was 56.9 × 10-3 mm2 pre-operatively and 267.2 × 10-3 mm2 post-operatively, showing a statistically significant increase (p = 0.0004). There was an increase in both mean canalicular width (0.253 to 0.524mm (p = 0.0001)) and depth (0.433 to 0.852mm (p = 0.0001)) from pre- to post-operatively. There was a significant improvement in symptoms from pre- to post-operatively, as measured subjectively by the Lac-Q questionnaire (p = 0.021). This study describes the change in the appearance of the punctum and proximal canaliculus in patients undergoing punctoplasty operations, by using spectral OCT to capture in vivo high-resolution images. It demonstrates that punctal OCT can be successfully applied to quantify the morphological changes of the punctum and canaliculus pre- and post-punctoplasty. SN - 1744-5108 UR - https://www.unboundmedicine.com/medline/citation/28812407/Scaling_the_punctum_and_canaliculus_in_patients_undergoing_punctoplasty_surgery:_A_prospective_cohort_study_ L2 - http://www.tandfonline.com/doi/full/10.1080/01676830.2017.1343857 DB - PRIME DP - Unbound Medicine ER -