Oh yes, I know this very well. I visualize everything! And to remember things, I create images in my head. However, I have not noticed if not visualizing something I saw or need to pay attention too/learn impairs my memory of it at all. I just know it is how I remember things in many instances. I am also HORRIBLY literal about everything and that messes me up too, when it comes to learning and understanding.

Also, my mother is an electrician and she is experiencing the same thing, she gets fired from a lot of places due to memory problems. She however was not able to get disability... so her life is hell right now. Can I ask how your father was able to be accepted for disability?

It's good that you are getting help for everything. I also fear that when I get older my memory will make me appear incompetent. It already does sometimes.