Lanthony P
Laboratoire de la Vision des Couleurs, Centre Hospitalier National d'Ophtalmologie des Quinze-Vingts, Paris.
J Fr Ophtalmol. 1995;18(10):578-83.
The desaturated Panel D-15 was performed in a repetitive manner to determine whether such repetition improves test results, and, specially, whether repetition can eliminate false positives.
The study population included 100 subjects with normal colour vision. The experimental procedure included: first the standard Farnsworth's Panel D-15 test, then the desaturated Panel D-15 test performed three times consecutively by each subject. Qualitative evaluation with the Farnsworth D-15 classical diagram and quantitative evaluation with scores calibrated according to the ages of the subjects were used.
The standard Panel D-15, performed first, was of no predictive value for the subsequent desaturated Panel D-15 (Cohen's K = 0.08). The desaturated Panel D-15 performed three times consecutively gave evidence of improvement in all the studied variables, from the first to the third time: scores tended toward low values, lower mean score (from 85 to 42); more zero scores (from 17 to 32); smaller number of abnormal scores (from 16 to 3). At the first performance of the desaturated Panel D-15, there were 16% false positives. At the second, there were 3%; and at the third, none of the initial false positives occurred.
Three successive performances of the desaturated Panel D-15 were necessary and sufficient to eliminate all false positives and can also assess some abnormal results.
以重复的方式进行去饱和Panel D - 15测试，以确定这种重复是否能改善测试结果，特别是重复是否能消除假阳性。
研究人群包括100名色觉正常的受试者。实验程序包括：首先进行标准的法恩斯沃思Panel D - 15测试，然后每个受试者连续进行三次去饱和Panel D - 15测试。采用法恩斯沃思D - 15经典图表进行定性评估，并根据受试者年龄校准分数进行定量评估。
首先进行的标准Panel D - 15对随后的去饱和Panel D - 15没有预测价值（科恩K值 = 0.08）。连续进行三次的去饱和Panel D - 15在所有研究变量上都显示出从第一次到第三次的改善：分数趋于低值，平均分数降低（从85降至42）；零分更多（从17增至32）；异常分数数量减少（从16降至3）。在第一次进行去饱和Panel D - 15测试时，有16%的假阳性。第二次时，有3%；第三次时，最初的假阳性均未出现。
连续三次进行去饱和Panel D - 15测试对于消除所有假阳性是必要且充分的，并且还可以评估一些异常结果。
