Comparative Analysis of Methods and Tests for Testing Colour Vision of Professional Seafarers

Abstract

There are differences among official standards of testing colour vision among different countries, conditioned by out-of date, but still enforceable laws and codes. These standards refer to professions in the maritime, air, rail and road traffic. The criteria for testing colour vision are significantly more severe for professionals involved in traffic. For complex diagnostics of colour vision disorder (dyschromatopsia) there are a number of well-known diagnostic methods and tests (of different cost, validity and year of production) at disposal. The difference of diagnostic methods and tests improves the detection of dyschromatopsia. The requirement is the correct choice of tests, correct mode and correct interpretation of results gained for each individual dyschromatopsia, i.e. profession.