98th Annual Meeting DOG 2000

P 331

Comparison between computerized and conventional Panel test

I. Frisch1, K. Rohrschneider1, H.-R. Koch2

Computerized color tests allow electronic saving of the results and therefore an automatically evaluation and comparison of the results with computerized diagnosis. Aim of this study was the comparison of a new computerized Panel test with the conventional color arrangement procedures (sensitivity and specificity).

Methods: Lanthony desaturated Panel like computerized Panel is presented on a calibrated video screen. The screen luminance amounts 60 cd/m2. 38 patients with dyschomatopsia, diagnosed by anomaloscope are compared to those of 26 normal subjects. Conventional and computerized Lanthony desaturated Panel are performed under 740 lux of white light from fluorescent tubes. The results are compared concerning sensitivity and specificity. Sensitivity is calculated out of the correct diagnosed color anomalies.

Results: Neither the computerized nor the conventional Panel of the normal subjects had pathologic results (specificity 100%). The sensitivity of tritanomaly was 71,4% (5/7), of deuteranomaly 11,1% (1/9), and of protanomaly 78,6% (11/14). Altogether, compared to the conventional color test, the sensitivity of the desaturated Panel was 68,8% (22/32).

Conclusion: The computerized Panel test shows a reduced specificity while sensitivity is good. Handling and further processing of the results is much easier with the computerized color test. Concerning to its standardization, electronic color tests have to be optimized.

1Universit├Ąts-Augenklinik Heidelberg, INF 400, 69120 Heidelberg;
Klinik Dardenne, Friedrich-Ebert-Str.23-25, 53177 Bonn