The Likely outcome for people with colour vision defect is that they will live out there lives normally but should not pursue careers as electricians or bomb defusers. Colour vision defect can be tested using the ishihara test which tests the persons ability to see coloured numbers on a coloured background or to trace a coloured line on a coloured background. Treatments are colour filtered lenses for glasses.
An example of coloured filtered glasses
Bausch and Lomb incorporated. (2017). Treatment — Colour Blind Awareness. Retrieved from http://www.colourblindawareness.org/colour-blindness/treatment/
Colour blind awareness. (2017). Treatment — Colour Blind Awareness. Retrieved from http://www.colourblindawareness.org/colour-blindness
Diagnosis — Colour Blind Awareness. (2017). Retrieved from http://www.colourblindawareness.org/colour-blindness/diagnosis/