Vissum/Instituto Oftalmológico de Alicante, Universidad de Alicante, Spain.
J Refract Surg. 2009 Nov;25(11):1017-25. doi: 10.3928/1081597X-20091016-08. Epub 2009 Nov 13.
To evaluate the relationship between two anterior chamber anatomical parameters, angle-to-angle and iris pigment end-to-iris pigment end distances, and sulcus-to-sulcus diameter.
Twenty eyes without active ocular pathologies or previous ocular surgeries from 20 patients ranging in age from 23 to 51 years were included in this study. Mean spherical equivalent refraction ranged from +5.50 to -7.00 diopters. Angle-to-angle and iris pigment end-to-iris pigment end distances were measured in all cases three times consecutively using two technologies: optical coherence tomography (OCT) and very high-frequency ultrasonography. Sulcus-to-sulcus diameter was additionally obtained by ultrasonography. Correlation, linear regression, intrasession, and interchangeability analysis between parameters was performed.
Mean sulcus-to-sulcus diameter was 11.92+/-0.80 mm. Mean angle-to-angle distance was 12.14+/-0.52 mm for ultrasonography and 12.23+/-0.59 mm for OCT. Mean iris pigment end-to-iris pigment end distance was 12.18+/-0.51 mm for ultrasonography and 12.29+/-0.61 mm for OCT. No statistically significant differences were found among these anatomical parameters (unpaired Student t test, all P>.10). Statistically significant correlations were found between sulcus-to-sulcus diameter and angle-to-angle distance and between sulcus-to-sulcus diameter and iris pigment end-to-iris pigment end distance for both imaging techniques. For ultrasonography, range of agreement was 0.90 mm between sulcus-to-sulcus diameter and angle-to-angle distance and 0.74 mm between sulcus-to-sulcus diameter and iris pigment end-to-iris pigment end distance. These ranges increased to 1.22 mm and 1.14 mm, respectively, for OCT measurements.
Angle-to-angle and iris pigment end-to-iris pigment end distances are correlated with sulcus-to-sulcus diameter, but they cannot be used as equivalent parameters.
评估前房两个解剖参数，即角到角距离和虹膜色素缘到虹膜色素缘距离，与巩膜嵴到巩膜嵴直径之间的关系。
本研究纳入了 20 名年龄在 23 岁至 51 岁之间、无活动性眼部疾病或既往眼部手术史的患者的 20 只眼。平均等效球镜屈光度范围为+5.50 至-7.00 屈光度。使用两种技术（光学相干断层扫描[OCT]和超高频超声）连续三次测量所有病例的角到角距离和虹膜色素缘到虹膜色素缘距离。通过超声测量巩膜嵴到巩膜嵴直径。对参数进行相关性、线性回归、内会话和可互换性分析。
平均巩膜嵴到巩膜嵴直径为 11.92+/-0.80mm。超声测量的平均角到角距离为 12.14+/-0.52mm，OCT 测量的平均角到角距离为 12.23+/-0.59mm。超声测量的平均虹膜色素缘到虹膜色素缘距离为 12.18+/-0.51mm，OCT 测量的平均虹膜色素缘到虹膜色素缘距离为 12.29+/-0.61mm。这些解剖参数之间无统计学差异（配对学生 t 检验，所有 P>.10）。两种成像技术均发现巩膜嵴到巩膜嵴直径与角到角距离之间以及巩膜嵴到巩膜嵴直径与虹膜色素缘到虹膜色素缘距离之间存在统计学显著相关性。对于超声检查，巩膜嵴到巩膜嵴直径与角到角距离的一致性范围为 0.90mm，巩膜嵴到巩膜嵴直径与虹膜色素缘到虹膜色素缘距离的一致性范围为 0.74mm。OCT 测量时，这些范围分别增加到 1.22mm 和 1.14mm。
角到角距离和虹膜色素缘到虹膜色素缘距离与巩膜嵴到巩膜嵴直径相关，但不能作为等效参数。
