| Comparison of Time Domain OCT and Spectrum Domain OCT for Retinal Nerve Fiber Layer Assessment. |
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Bu Ki Kim, Dong Wook Lee, Min Ahn, Nam Chun Cho |
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Department of Ophthalmology, Chonbuk National University Hospital, Junju, Korea. ldw@chonbuk.ac.kr |
| 시간영역 빛간섭단층촬영기와 스펙트럼영역 빛간섭단층촬영기로 측정한 망막신경섬유층 두께 비교 |
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김부기ㆍ이동욱ㆍ안민ㆍ조남천 |
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Department of Ophthalmology, Chonbuk National University Hospital, Junju, Korea |
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| Abstract |
PURPOSE
To compare retinal nerve fiber layer (RNFL) thickness obtained with Stratus optical coherence tomography (OCT) and Cirrus OCT. METHODS: Sixty-one normal eyes were evaluated with Stratus and Cirrus OCT on the same day, and the RNFL thicknesses measured by the two OCT machines were compared. The correlation between the two data sets was obtained using Pearson's correlation coefficient. The correlation between RNFL thickness and the difference in data measured by the two OCT machines was then assessed. RESULTS: The average RNFL thickness was significantly higher with Stratus OCT by 6.54+/-4.48 micrometer (p=0.0008). A strong correlation was present between the two RNFL thickness data sets (r=0.883), and the difference between Stratus and Cirrus values tended to increase as RNFL thickness increased. CONCLUSIONS: RNFL thickness measurements in normal eyes scanned with Cirrus OCT correlate well with Stratus OCT measurements. Average RNFL thickness was significantly higher with Stratus OCT, and as the RNFL thickness increased, the difference between Stratus and Cirrus values increased. |
| Key Words:
Cirrus;Optical coherence tomography;Retinal nerve fiber layer thickness;Stratus |
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