Kamppeter B A, Jonas J B
Universitätsaugenklinik, Fakultät für Klinische Medizin Mannheim der Ruprecht-Karls-Universität Heidelberg, Mannheim.
Ophthalmologe. 2006 Jan;103(1):40-2. doi: 10.1007/s00347-005-1247-x.
The aim of this study was to evaluate whether confocal laser scanning tomographic measurements of the optic nerve head depend on the time of day when the examinations are performed.
Thirty-two eyes of 20 subjects repeatedly underwent optic disc confocal laser scanning tomography using the Heidelberg Retina Tomograph I. Operated by a single examiner, measurements were performed at 10 a.m. and 4 p.m. on the same day.
Comparing both measurements, differences in optic cup area (0.119+/-0.126 mm(2); p=0.89), neuroretinal rim area (0.120+/-0.131 mm(2); p=0.86), cup volume (0.069+/-0.086 mm(3); p=0.86), rim volume (0.083+/-0.090 mm(3); p=0.51), and retinal nerve fiber layer thickness (0.075+/-0.063 mm; p=0.31) were statistically not significant. Intraocular pressure differences between morning and afternoon ranged between 0 and 14 mmHg.
Confocal laser scanning tomographic measurements of the optic nerve head are not markedly influenced by the time of day.
本研究旨在评估视神经乳头的共焦激光扫描断层测量是否取决于检查进行的时间。
20名受试者的32只眼睛使用海德堡视网膜断层扫描仪I反复接受视盘共焦激光扫描断层扫描。由一名检查者操作，在同一天上午10点和下午4点进行测量。
比较两次测量，视杯面积（0.119±0.126平方毫米；p=0.89）、神经视网膜边缘面积（0.120±0.131平方毫米；p=0.86）、视杯体积（0.069±0.086立方毫米；p=0.86）、边缘体积（0.083±0.090立方毫米；p=0.51）和视网膜神经纤维层厚度（0.075±0.063毫米；p=0.31）的差异无统计学意义。上午和下午的眼压差异在0至14毫米汞柱之间。
视神经乳头的共焦激光扫描断层测量不受一天中时间的显著影响。
