Central Corneal Thickness, Anterior Chamber Depth, and Pupil Diameter Measurements Using Visante OCT, Orbscan, and Pentacam
Central Corneal Thickness, Anterior Chamber Depth, and Pupil Diameter Measurements Using Visante OCT, Orbscan, and Pentacam
复制标题
DOI：
10.3928/1081597x-20100121-08
复制
发表时间：
2010-02-01
影响因子：
2.4
通讯作者：
Yilmaz, Omer Faruk
中科院分区：
文献类型：
--
作者：
Yazici, Ahmet Taylan;Bozkurt, Ercument;Yilmaz, Omer Faruk
目得：目的：评价三种不同光学方法测量前房深度（ACD）、中央角膜厚度（CCT）和瞳孔直径的一致性。患者平均年龄为25岁（范围：21 - 32岁）。排除标准为任何眼内或角膜手术史、接触透镜配戴、角膜异常和球镜屈光度>5.00 D或柱镜屈光度>2.00 D。所有测量均由同一操作员在中间光条件下进行，并使用三种不同的光学方法重复进行：Visante光学相干断层扫描（OCT）（Carl Zeiss Meditec），Orbscan（Bausch & Lomb）和Pentacam（Oculus Optikgerate GmbH）。通过Visante OCT、Orbscan和Pentacam测量的平均CCT分别为529 +/- 30.5 μ m、554 +/- 32.7 μ m和552 +/- 29.3 μ m。平均ACD值分别为2.94 +/- 0.34 mm、2.84 +/- 0.33 mm和2.98 +/- 0.33 mm。平均瞳孔直径测量值分别为4.87 +/- 1.09 mm、4.0 +/- 0.67 mm和3.05 +/- 0.59 mm。Visante OCT测量的CCT较薄，Orbscan测量的ACD较浅。所有这三种方法测量瞳孔直径显着differenties.Conclusions：这项研究发现一些统计学显着，但临床无意义的差异之间的光学方法评估。这些差异很小，不会影响临床实践中屈光手术的决策。[J Refract Surg. 2010;26：127-133.] doi：10.3928/1081597X-20100121-08
PURPOSE: To evaluate the agreement among three different optical methods in measuring anterior chamber depth (ACD), central corneal thickness (CCT), and pupil diameter.METHODS: One hundred eyes of 50 healthy patients (25 men, 25 women) were enrolled in the study. Mean patient age was 25 years (range: 21 to 32 years). Exclusion criteria were history of any intraocular or corneal surgery, contact lens wear, corneal anomalies, and spherical refraction >5.00 diopters (D) or cylindrical refraction >2.00 D. All measurements were done by the same operator under mesopic light conditions and repeated using three different optical methods: Visante optical coherence tomography (OCT) (Carl Zeiss Meditec), Orbscan (Bausch & Lomb), and Pentacam (Oculus Optikgerate GmbH).RESULTS: Mean CCT as measured by Visante OCT, Orbscan, and Pentacam was 529 +/- 30.5 mu m, 554 +/- 32.7 mu m, and 552 +/- 29.3 mu m, respectively. Mean ACD values were 2.94 +/- 0.34 mm, 2.84 +/- 0.33 mm, and 2.98 +/- 0.33 mm, respectively. Mean pupil diameter measurements were 4.87 +/- 1.09 mm, 4.0 +/- 0.67 mm, and 3.05 +/- 0.59 mm, respectively. The Visante OCT measured CCT thinner and Orbscan measured ACD shallower than the other two methods. All three methods measured pupil diameters significantly different.CONCLUSIONS: This study found some statistically significant but clinically insignificant differences among the optical methods assessed. The differences are small and do not influence decisions for refractive surgery in clinical practice. [J Refract Surg. 2010;26:127-133.] doi:10.3928/1081597X-20100121-08