The problem with WH's eye is a vitreous detachment, which he says is repairing itself slowly .... so yes, it's still there.
There are a few very serious impediments to us leaving
@Owlunar ..., The first and most important one is how much we still love him, and understanding that he is ill, means that we would be leaving him alone in his illness, and leaving because he is ill, not because we had stopped loving or respecting him. The kids are absolutely on that page, and downplaying the seriousness of what we are dealing with as much as they can, for their own ability to cope.
Secondly, AN has a very high mortality rate, and large percentage of that is owing to si .... once the repercussions and / or reality of WH's illness becomes apparent to him, we don't know how he will cope if the dx and appropriate supports are not in place .... and even if they are. A very public shaming would not help one iota in terms of keeping him safe .... quite the opposite in fact.
AN is an illness about control issues rather than food. It has just channeled itself into food issues as a means of expressing itself and its need for control. As such, WH has control of our finances and possessions, and has cameras and phone tracking in place. He could shit down accounts in the blink of an eye, and would know within a short time if there were any major changes to our living arrangements or general movements. It would take a military-type effort to create the circumstances where we could leave without major drama and trauma, and there would be no putting any of it back together once his illness was diagnosed.
We have all our money on this working out on the path we are on, or needing to ditch if it went really wonly and seek crisis support.