Kelly Susan A, Pang Yi, Klemencic Stephanie
Illinois College of Optometry, Chicago, Illinois, USA.
Optom Vis Sci. 2012 Aug;89(8):1172-81. doi: 10.1097/OPX.0b013e318264097b.
Test-retest reliability of the CSV-1000 (Vector Vision) has only been reported for one adult sample. We measured the reliability of this instrument in both children and adults and also investigated the effect of changing the examiner on test-retest reliability.
Test-retest log contrast sensitivity (CS) measurements were obtained for 19 young adults and 15 children by the same examiner. Test-retest log CS data were obtained from 21 young adults with different examiners. Reliability was calculated using the Bland-Altman limits of agreement, the coefficient of repeatability (COR), and the intraclass correlation coefficient.
All three estimates of reliability for the CSV-1000 chart are low for both children and adults using the standard recommended testing protocol. If the test-retest log CS data are obtained from the same examiner then the reliability is improved, but not significantly so.
The reliability of the CSV-1000 is low, even if the same examiner obtains test-retest data. The data indicate that this test is unlikely to be sensitive enough to provide useful information for the clinician as is, but we suggest modifications of the procedure that may significantly increase test reliability.
CSV - 1000（矢量视觉）的重测信度仅在一个成人样本中得到报道。我们测量了该仪器在儿童和成人中的信度，并研究了更换检查者对重测信度的影响。
由同一名检查者对19名年轻成人和15名儿童进行重测对数对比敏感度（CS）测量。从21名年轻成人中由不同检查者获取重测对数CS数据。使用布兰德 - 奥特曼一致性界限、重复性系数（COR）和组内相关系数计算信度。
使用标准推荐测试方案时，CSV - 1000图表的所有三种信度估计值在儿童和成人中都很低。如果重测对数CS数据由同一名检查者获取，那么信度会有所提高，但提高并不显著。
即使由同一名检查者获取重测数据，CSV - 1000的信度仍然很低。数据表明，该测试目前可能不够敏感，无法为临床医生提供有用信息，但我们建议对测试程序进行修改，这可能会显著提高测试信度。
