@Markoff said:

In US donor and recipient can have a deal together? Seems very odd, because in most of the world it seems recipient would be chosen randomly and not by donor's choice.

Yup it's called a directed donation. The only iffy part in this case is whether the recipients would all be compatible (blood type) since I don't think he checked that first. Maybe it's implied that he did ...or maybe he was type O which is universal. So it's a minor nitpick the writers probably didn't think was worth wasting time on.

they said the woman artist had special blood group so in her case chance of survival were only 3-5% when he wanted to make sure if he really has to die or if they can use someone else and when they told him odds he decided to go with the plan since it was difficult to find his substitute for her, so it's implied he checked their health status thoroughly including blood group

btw I wonder why eye donations are not done en masse, seems you should see pretty much none blind people considering how many people for each day even if they used one donor for two people and fix only one eye it's rapid improvement over 0 eyes

I totally forgot that part about him checking (been a few years since I saw this). So yeah I guess the writers covered all the bases.

With eye transplants I think that only helps cases of damaged corneas, or parts of the outer eye, but damage to the retina or optic nerve can’t be helped (yet). There’s new research into stem cell transplants for the retina to treat stuff like macular degeneration, so maybe in a few years what you say will be possible. I agree even they can fix 1 eye that’ll make a huge difference. And you’d think with 2 eyes per donor there might be enough to go around.