Yes, registered organ donor....although what they can use may be limited by my diabetes as well.
When my mother died in April, she had decided to make a whole body donation to research on Crohn's disease and the colon cancer that resulted (and which ultimately killed her). I thought that was that.
However, Belle is right. Only hours after the call from the hospital telling me she had died, I got a call from the Organ & Tissue Bank asking for a donation of her eyes. We had never talked about that, and I had a moment of total blankness before I decided to say yes, of course.
It's a good thing to talk about, document, and spread the information around. The person who gets that phone call may not be the one you expect to.
For me, donate whatever is usable. Cremate the rest. NO burial....and no funeral. I love roses, and roses love ashes. Act accordingly.