Bell Nicholas P, Nagi Kundandeep S, Cumba Ricardo J, Chuang Alice Z, Lee David A, Prager Thomas C, Rao Kavita, Feldman Robert M
Ruiz Department of Ophthalmology and Visual Science, The University of Texas Medical School at Houston, 6431 Fannin Street, MSB 7.024, Houston, TX 77030, USA ; Robert Cizik Eye Clinic, 6400 Fannin Street, Suite 1800, Houston, TX 77030, USA.
Ruiz Department of Ophthalmology and Visual Science, The University of Texas Medical School at Houston, 6431 Fannin Street, MSB 7.024, Houston, TX 77030, USA ; Department of Ophthalmology, The University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive, Mail Code 6230, San Antonio, TX 78229, USA.
ISRN Ophthalmol. 2013 Apr 23;2013:706201. doi: 10.1155/2013/706201. eCollection 2013.
Purpose. To investigate age- and position-related changes of anterior chamber angle anatomy in normal, healthy eyes. Patients and Methods. Thirty subjects were separated into a younger and older cohort. The superior and inferior anterior chamber angles of the eyes were measured in supine and sitting positions by ultrasound biomicroscopy (UBM) with bag/balloon technology. Statistical analysis was used to evaluate positional and age-related changes in angle morphology. Results. In the younger cohort, no location or positional differences in angle anatomy were observed. In the older cohort, the inferior quadrant was significantly narrower than the superior quadrant (P = 0.0186) in the supine position. This cohort also demonstrated an interaction effect between position and location. In the older cohort, the angle was deeper inferiorly while the subject was sitting but was deeper superiorly while the subject was supine. Conclusion. Comparison of positional variations in anterior chamber angle anatomy as measured by UBM has recently become possible. This study found that age-related positional changes in the anterior chamber angle anatomy exist in normal healthy eyes.
目的。研究正常健康眼睛前房角解剖结构与年龄和体位相关的变化。患者与方法。30名受试者被分为年轻组和老年组。采用带囊/球囊技术的超声生物显微镜（UBM）在仰卧位和坐位测量眼睛的上、下前房角。采用统计分析评估角形态的体位和年龄相关变化。结果。在年轻组中，未观察到角解剖结构在位置或体位上的差异。在老年组中，仰卧位时下方象限明显比上方象限窄（P = 0.0186）。该组还显示出位置和体位之间的相互作用。在老年组中，受试者坐位时下方房角更深，而仰卧位时上方房角更深。结论。通过UBM测量前房角解剖结构的体位变化比较近来已成为可能。本研究发现正常健康眼睛存在与年龄相关的前房角解剖结构体位变化。
