I'm not disagreeing with the publication that was sited, however I read from at least 10 different extension publications from across the nation that made mention of the fact that pigment was inherited and that it is a deterrent to cancer eye, but didn't make mention of cancer eye being inherited.
In addition, the publication cited does not mention specifics in regards to cancer eye being inherited only that it is -- not proof to me (there may be proof out there somewhere though).
In addition, the publication cited does not mention specifics in regards to cancer eye being inherited only that it is -- not proof to me (there may be proof out there somewhere though).