| Utility of the Swept Source Optical Coherence Tomography for Measurements of Central Corneal Thickness. |
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Im Gyu Kim, Chong Eun Lee, Jun Seok Lee, Sam Seo, Kyoo Won Lee |
1Cheil Eye Hospital, Daegu, Korea. vit.s0324@gmail.com
2Department of Ophthalmology, Keimyung University School of Medicine, Daegu, Korea. |
| 중심각막두께 측정에 대한 파장가변 빛간섭단층촬영계의 유용성 |
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김임규1⋅이종은2⋅이준석1⋅서 샘1⋅이규원1 |
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제일안과병원1, 계명대학교 의과대학 안과학교실2 |
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| 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. |
| Key Words:
Anterior segment optical coherence tomography;Central corneal thickness;Orbscan II;Swept source optical coherence tomography;Ultrasound pachymetry |
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