J Korean Ophthalmol Soc > Volume 55(5); 2014 > Article
Journal of the Korean Ophthalmological Society 2014;55(5):656-661.
DOI: https://doi.org/10.3341/jkos.2014.55.5.656    Published online May 15, 2014.
Comparison of Anterior Segment Measurements Using Scanning-Slit Topography and Optical Low-Coherence Reflectometry (OLCR) Biometry.
Taek Kwan Rhee, Ji Hyun Park, Hyo Jeong Kang, Young A Kwon, Sang Wroul Song, Byoung Yeop Kim, Jae Lim Chung
1Department of Ophthalmology, Kim's Eye Hospital, Konyang University College of Medicine, Myung-Gok Eye Research Institute, Seoul, Korea. Jaelim.chung@gmail.com
2Daesung Yonsei Eye Clinic, Bucheon, Korea.
3Eyelove Eye Center, Daejeon, Korea.
수평각막직경을 포함한 전안부 계측에 있어서 슬릿광주사 각막형태검사기와 저간섭성 반사계의 비교
이택관1⋅박지현1,2⋅강효정1,3⋅권영아1⋅송상률1⋅김병엽1⋅정재림1
Department of Ophthalmology, Kim’s Eye Hospital, Konyang University College of Medicine, Myung-Gok Eye Research Institute1, Seoul, Korea
Daesung Yonsei Eye Clinic2, Bucheon, Korea
Eyelove Eye Center3, Daejeon, Korea
Abstract
PURPOSE
To compare the results of anterior segment biometry including white-to-white (WTW) between scanning-slit topography (ORBscan IIz(R), Bausch & Lomb), optical low-coherence reflectometry (OLCR) biometry (Lenstar(R), Haag-Streit), and Castroviejo calipers. METHODS: Measurements on 72 eyes of 36 patients that underwent refractive surgery were measured using ORBscan(R), Lenstar(R), and calipers and compared. Ocular biometry parameters used in this study included the WTW, central corneal thickness, anterior chamber depth (ACD), keratometry, and pupil size. RESULTS: The WTW measurements using ORBscan(R) and calipers (11.57 +/- 0.35 mm and 11.58 +/- 0.34 mm, respectively) were statistically similar. However, the measurement using Lenstar(R) (12.05 +/- 0.40 mm) was significantly greater than with the other methods (p < 0.001). Central corneal thickness and keratometry measurements using ORBscan(R) were greater than when using Lenstar(R) (p = 0.01 for both). ACD and pupil size measurement using Lenstar(R) were greater than when using ORBscan(R) (p < 0.001 for both). CONCLUSIONS: Because WTW and ACD measurements using Lenstar(R) were greater than when using ORBscan(R) and calipers, unexpected high-vaulting may be observed due to the selection of a larger-sized posterior chamber phakic intraocular lens. Therefore, the differences in measurements obtained when using these methods should be considered.
Key Words: Biometry;Lenstar(R);Optical low-coherence reflectometry (OLCR);ORBscan(R);White-to-white (WTW)


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