Porkpal, you have the same situation I have. My daughters carry the red-green deficiency gene from their father and from my father. If they have sons, they will be color blind. Years ago, I had horrible visual acuity. I finally went to Canada to get Lasik on my eyes (this was before we had it here) and the instant my eye was zapped, I was seeing colors I had never seen before! The doctor said I basically went from a 28 color vision to thousands. It was the most incredible thing.