Projected color slides as a method for mass screening test for color vision deficiency (A preliminary study)


Gundogan N., Durmazlar N., Gumus K., Ozdemir P., Altintas A., Durur I., ...More

INTERNATIONAL JOURNAL OF NEUROSCIENCE, vol.115, no.8, pp.1105-1117, 2005 (SCI-Expanded) identifier identifier identifier

Abstract

This article compared the efficiency of the mass screening test with projected color slides in detecting color-blindness with the authentic classic method of Ishihara. The study was conducted in a randomly selected lecture room with 104 students aged between 19-25 years (median 21). Using Ishihara projected slides, performed mass screening test. Re-testing was done individually with printed Ishihara plates. Six male and one female with color-blindness were detected. The frequency of color-blindness was 13.6% among males, with a total incidence of 6.7%. The results of two testing methods were compared statistically. Sensitivities and specificities of both tests were 100%. Using projected slides of Ishihara plates instead of the authentic method is an effective and timesaving method for detecting color-blindness. This method can be suggested as a mass-screening test and might be beneficial in detecting color-blindness in large populations such as students, soldiers, and so on.