A property professional with nearly 20 years experience of estate agency in Suffolk and North Essex. During that time I have carried out market appraisals on over 5000 residential properties and have helped over 1500 people successfully sell their home.
Therefore, a son from a color-blind mother (who receives the trait from his mother on the X-chromosome) will always be color-blind, regardless of the state of the father (who can only give his son a Y-chromosome).
Generally speaking, people who are born blind doesn't mean they don't have eyes balls. The eye color of someone with blindness is usually White, Grey or Pale. Most blind people have normal looking eyes and remain their original color of eyes when they go blind. Eye color does not change when a person becomes blind. The colors of eyes could only change in case there is a defect in pigmentation and sometimes after trauma when the iris becomes atrophied, which means being dead.