Utility of the Swept Source Optical Coherence Tomography for Measurements of Central Corneal Thickness.
10.3341/jkos.2016.57.10.1542
- Author:
Im Gyu KIM
1
;
Chong Eun LEE
;
Jun Seok LEE
;
Sam SEO
;
Kyoo Won LEE
Author Information
1. Cheil Eye Hospital, Daegu, Korea. vit.s0324@gmail.com
- Publication Type:Original Article
- Keywords:
Anterior segment optical coherence tomography;
Central corneal thickness;
Orbscan II;
Swept source optical coherence tomography;
Ultrasound pachymetry
- MeSH:
Healthy Volunteers;
Tomography, Optical Coherence*;
Ultrasonography
- From:Journal of the Korean Ophthalmological Society
2016;57(10):1542-1548
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: To evaluate the efficacy of swept source optical coherence tomography (SS-OCT) by comparing the measurement of central corneal thickness (CCT) to the measurement obtained using Orbscan II, anterior segment optical coherence tomography (AS-OCT) and ultrasound pachymetry. METHODS: One examiner measured the CCT in 65 eyes of 65 healthy subjects using Orbscan II, AS-OCT, SS-OCT and ultrasound pachymetry. The mean values and correlations were analyzed. RESULTS: The average CCT measurements obtained using Orbscan II, AS-OCT, SS-OCT and ultrasound pachymetry were 534.83 ± 38.46, 517.80 ± 32.48, 528.22 ± 33.71 and 528.02 ± 34.90 µm, respectively. A significant linear correlation was observed among Orbscan II, AS-OCT, SS-OCT and ultrasound pachymetry (r > 0.894, p < 0.001). There was no significant difference between the SS-OCT and ultrasound pachymetry (p = 0.782). CONCLUSIONS: The results of the 4 methods were significantly correlated and the SS-OCT reached a high level of agreement when CCT was determined using ultrasound pachymetry. The CCT measurements using SS-OCT is a better alternative for ultrasound pachymetry than Orbscan II and AS-OCT.
