University Eye Hospital Freiburg, Freiburg im Breisgau, Germany.
J Cataract Refract Surg. 2011 Sep;37(9):1686-93. doi: 10.1016/j.jcrs.2011.03.048. Epub 2011 Jul 12.
To measure the ciliary sulcus-to-sulcus (STS) diameter in 4 axes in emmetropic and myopic eyes using ultrasound biomicroscopy (UBM) and compare the measurements with automated horizontal white-to-white (WTW) diameter measurements.
University Eye Hospital Freiburg, Freiburg im Breisgau, Germany.
Evaluation of diagnostic technology.
The STS diameter was measured at 0, 45, 90, and 135 degrees using 35 MHz UBM. The 0-degree WTW diameters were obtained using scanning-slit topography (Orbscan) and partial coherence interferometry (PCI) biometry (IOLMaster). The 0-degree STS and 90-degree STS were compared using the paired t test; the Pearson correlation was used to assess whether the 0-degree STS diameter could be predicted from the 0-degree WTW diameter.
The mean SE refraction was -0.48 diopter (D) ± 0.35 (SD) in emmetropic eyes and -9.55 ± 3.70 D in myopic eyes. In 35 of 37 eyes, 90-degree STS was greater than 0-degree STS. The mean 90-degree STS was 12.51 ± 0.43 mm. The mean 0-degree STS was 12.19 ± 0.47 mm (P<.01). The mean 0-degree WTW diameters were 11.73 ± 0.37 mm (scanning-slit topography) and 12.20 ± 0.42 mm (PCI biometry). The correlations were good between 0-degree STS and 0-degree WTW with PCI biometry (r(2) = 0.82) and scanning-slit topography (r(2) = 0.86) in emmetropic eyes but weak between 0-degree STS and 0-degree WTW in myopic eyes (r(2) = 0.36 and r(2) = 0.40, respectively).
Sulcus diameter measurements were most precise using UBM. The ciliary sulcus is vertically oval. The WTW diameter is not suitable for calculating a PC pIOL diameter, particularly in myopic eyes.
使用超声生物显微镜（UBM）在 4 个轴上测量正视眼和近视眼的睫状沟到沟（STS）直径，并将测量值与自动水平白到白（WTW）直径测量值进行比较。
德国弗莱堡大学眼科医院。
诊断技术评估。
使用 35MHz UBM 在 0、45、90 和 135 度测量 STS 直径。使用扫描狭缝 topography（Orbscan）和部分相干干涉测量（PCI）生物测量（IOLMaster）获得 0 度 WTW 直径。使用配对 t 检验比较 0 度 STS 和 90 度 STS；使用 Pearson 相关评估 0 度 STS 直径是否可以从 0 度 WTW 直径预测。
正视眼的平均 SE 屈光度为-0.48 屈光度（D）±0.35（SD），近视眼为-9.55±3.70D。在 37 只眼中的 35 只眼中，90 度 STS 大于 0 度 STS。平均 90 度 STS 为 12.51±0.43mm。平均 0 度 STS 为 12.19±0.47mm（P<.01）。平均 0 度 WTW 直径分别为 11.73±0.37mm（扫描狭缝 topography）和 12.20±0.42mm（PCI 生物测量）。在正视眼中，0 度 STS 与 0 度 WTW 与 PCI 生物测量（r(2)=0.82）和扫描狭缝 topography（r(2)=0.86）的相关性良好，但在近视眼中，0 度 STS 与 0 度 WTW 的相关性较弱（r(2)=0.36 和 r(2)=0.40）。
UBM 测量的巩膜沟直径最精确。巩膜沟垂直呈椭圆形。WTW 直径不适合计算 PC pIOL 直径，特别是在近视眼中。
