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Measurement of lacrimal punctum using spectralis domain anterior optical coherence tomography.
Acta Ophthalmol 2017; 95(7):e619-e624AO

Abstract

PURPOSE

Anterior segment optical coherence tomography (AS-OCT) was used to image the lacrimal punctum and establish normal punctal parameters including the tear volume inside the punctum.

METHODS

This study included totally 67 eyes from 38 normal subjects. Punctal parameters and tear meniscus height (TMH) were measured using spectralis OCT anterior-segment scans. Outer punctal diameter (OPD), punctal depth, tear well diameter (TWD), tear well depth, punctal reserve (PR) and lower eyelid TMH were assessed. Authors defined a 'tear well' as a pool of standing tears in the punctum. Punctal reserve was defined as the difference between punctal depth and tear well depth.

RESULTS

Outer punctal diameter was 614.6 ± 195.6 μm, the punctal depth was 545.8 ± 270.1 μm, TWD was 229.9 ± 133.8 μm, the tear well depth was 434.9 ± 247.8 μm, the PR was 110.9 ± 72.9 μm, the PR ratio was 0.20 ± 0.17, and the TMH was 222.9 ± 88.8 μm. The punctal depth decreased significantly according to the patient's age (correlation coefficient = -0.352, respectively).

CONCLUSION

AS-OCT is useful for improving anatomical understanding of the lacrimal punctal structure. Quantitative punctum and tear well measurements were correlated with TMH.

Authors+Show Affiliations

Department of Ophthalmology, Bundang CHA Hospital, CHA University, College of Medicine, Seongnam, Republic of Korea.Department of Ophthalmology, Bundang CHA Hospital, CHA University, College of Medicine, Seongnam, Republic of Korea.Department of Ophthalmology, Bundang CHA Hospital, CHA University, College of Medicine, Seongnam, Republic of Korea.

Pub Type(s)

Journal Article
Observational Study

Language

eng

PubMed ID

28029231

Citation

Sung, Youngje, et al. "Measurement of Lacrimal Punctum Using Spectralis Domain Anterior Optical Coherence Tomography." Acta Ophthalmologica, vol. 95, no. 7, 2017, pp. e619-e624.
Sung Y, Park JS, Lew H. Measurement of lacrimal punctum using spectralis domain anterior optical coherence tomography. Acta Ophthalmol. 2017;95(7):e619-e624.
Sung, Y., Park, J. S., & Lew, H. (2017). Measurement of lacrimal punctum using spectralis domain anterior optical coherence tomography. Acta Ophthalmologica, 95(7), pp. e619-e624. doi:10.1111/aos.13322.
Sung Y, Park JS, Lew H. Measurement of Lacrimal Punctum Using Spectralis Domain Anterior Optical Coherence Tomography. Acta Ophthalmol. 2017;95(7):e619-e624. PubMed PMID: 28029231.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Measurement of lacrimal punctum using spectralis domain anterior optical coherence tomography. AU - Sung,Youngje, AU - Park,Jong Seo, AU - Lew,Helen, Y1 - 2016/12/28/ PY - 2016/05/23/received PY - 2016/10/07/accepted PY - 2016/12/29/pubmed PY - 2018/1/3/medline PY - 2016/12/29/entrez KW - lacrimal punctum KW - normal population KW - optical coherence tomography KW - tear dynamics SP - e619 EP - e624 JF - Acta ophthalmologica JO - Acta Ophthalmol VL - 95 IS - 7 N2 - PURPOSE: Anterior segment optical coherence tomography (AS-OCT) was used to image the lacrimal punctum and establish normal punctal parameters including the tear volume inside the punctum. METHODS: This study included totally 67 eyes from 38 normal subjects. Punctal parameters and tear meniscus height (TMH) were measured using spectralis OCT anterior-segment scans. Outer punctal diameter (OPD), punctal depth, tear well diameter (TWD), tear well depth, punctal reserve (PR) and lower eyelid TMH were assessed. Authors defined a 'tear well' as a pool of standing tears in the punctum. Punctal reserve was defined as the difference between punctal depth and tear well depth. RESULTS: Outer punctal diameter was 614.6 ± 195.6 μm, the punctal depth was 545.8 ± 270.1 μm, TWD was 229.9 ± 133.8 μm, the tear well depth was 434.9 ± 247.8 μm, the PR was 110.9 ± 72.9 μm, the PR ratio was 0.20 ± 0.17, and the TMH was 222.9 ± 88.8 μm. The punctal depth decreased significantly according to the patient's age (correlation coefficient = -0.352, respectively). CONCLUSION: AS-OCT is useful for improving anatomical understanding of the lacrimal punctal structure. Quantitative punctum and tear well measurements were correlated with TMH. SN - 1755-3768 UR - https://www.unboundmedicine.com/medline/citation/28029231/Measurement_of_lacrimal_punctum_using_spectralis_domain_anterior_optical_coherence_tomography_ L2 - https://doi.org/10.1111/aos.13322 DB - PRIME DP - Unbound Medicine ER -