When I think about myself, I tend not to distinguish among them - they are all challenges. I may be a little different because my Hodgkin's, my massive infections, my scar tissue, my heart attack, my hemi-diaphragm, my brachial plexus nerve damage, etc are all inter-related and were from the beginning. So - I tend not to put them into boxes.
Your visual challenges and the scars (physical and psychological) left by your cancer and its treatment were not initially related. I see them as related now though because they are you. You cannot separate yourself from them. They both influence how you see yourself, but they represent challenges you have overcome. Yay, you. You are a survivor.