English to Bulgarian Medical Medical (general) Medical Tests

At present the test recognizes three degrees of extent of defect: mild, medium, and strong. The LAST GROUP of plates in which error occurs gives the extent of the patient’s color deficiency. For example, in a case of red-green deficiency if the last error occurs in either group of plates 7-10 or 11-15 and there are no errors in plates 16-20, the defect is mild in extent; if the last error occurs in plates 16-18 and there are no errors in plates 19-20, the defect is medium in extent; and if errors occur in plates 19-20, the defect is strong.