Color blindness, also known as color vision deficiency, is the decreased ability 
Is this an ailment that you suffer yourself, or do you know someone who has it?
People with total color blindness, however, may also have decreased visual acuity and be uncomfortable 
I hope that is not something that you ever have to suffer yourself. 
It may lead to Visual impairment, also known as vision impairment or vision loss, is a decreased ability to see to a degree that causes problems not fixable by usual means, 
Do you think there will ever be a cure for it someday?
Unfortunately,there's no cure for color blindness.
Hopefully there will be one someday, because it sounds uncomfortable.