EYE DISEASES : DICHROMATE (DICHROMASIA) - etiology, pathogenesis, symptoms and course of, recognition, prediction and prevention
Congenital anomaly, occurring predominantly in males.
Symptoms. The inability to distinguish shades of colors. Usually recognized especially difficult Krasnoprudnaya and yellow-green colors (green color blindness - deuteranopia and blindness to red - Protanopia).
For. The anomaly is persistent.
In most cases is not difficult when using the tables Rabkin, etc., In doubtful cases it is necessary to study anomaloscope. If the test equates red spectral or spectral green tone to yellow-orange tone control (respectively the spectral line of sodium), the presence of dichromate can be regarded as established.
No methods of prevention and treatment of congenital dichromate does not exist yet. To facilitate the recognition of colors persons suffering from this anomaly, it is recommended to use special colored glasses.