No Me too have known few color blind men .They are into there life normal .nobody wears such glass too.Only thing is they were rejected in few entrance test like army police due to this.There are various types of color blind person.Few can't make difference between shades of a color.Few cant see few colors and few are there who can only see primary colors.They can't see orange pink and other complimentary shades.Pardon my ignorance, but is colour blindness such a big problem that it hampers your life and needs to be corrected with special glasses? I have never heard of anyone wearing colour blindness glasses. Why are they highlighting it in the show?