Bird box as opposed to blindness

as for birdbox the characters had to keep their eyes covered so as to avoid them from Leung affected by something that is in the atmosphere that would affect them. If they were to see it they would eventually die. If they were to look in the eyes of those who have seen the particular thing that was contributing to them affecting their lives, they would kill themselves. They would die. For blindness it is contagious one person had it and the next person they come in contact with eventually catches it. These people wind up seeing this whiteness and eventually they are forced to be in a space with everyone else who has it. The difference between both is that with blindness the persons only dire if they are shot but not because they are forced to kill themselves without even knowing why. If they were to do this in blindness then it would be a choice but not something that they do not have control over.