I'm confused by this post because it seems like his partner got best therapy possible with two surgeries followed by medications without going blind or having other major hormonal issues which can happen after surgery. As correctly stated in this thread prolactinomas aren't a death sentence or even (technically) a brain tumour, and the major risks have been avoided so far. What exactly is being accomplished by a VC deeply researching this case beyond satisfying the valid desire to help your life partner?