I feel like this had the potential to be a great thriller, but there's so many things that went wrong so sadly I can't say it is. The main problem is the pacing, there's just no build up of suspense for the majority of the movie, and so the final sequence of events happen so quickly so as to almost feel rushed. Also whereas the husband is clearly meant to be the antagonist in the story, and the wife is the heroine, there's just something that doesn't quite sit right with me about her, and I feel like both characters come off as quite unlikeable by the end. I mean I know it was really bad for him to change the eye drops, so sure I can accept him as the bad guy, he got it coming to him in the end. But as for the wife let's just put it this way, when she gets her vision back she becomes quite rude towards her husband, self centred, sleeps with another guy, then lies about it and even has a baby which she clearly tries to pass off as the husband's, and then pretends that she's still blind when she can actually see, and by the end after he kills himself and she has the baby it's like it was supposedly a good turn of events, like a sort of redemption. There's a feminist quality to the protagonist, and by regaining her sight it distills this power within her, and that by challenging her newfound self empowerment the husband became the villain. The funny thing is that I felt more sympathy for the husband for the most of the movie... hell maybe that's just me, but I wouldn't be surprised if the majority of people who like this movie are women, but either way it's just bad.
So to answer the initial question 'It's not really a thriller, so what's it supposed to be?', well it's kind of like a very average drama with unlikeable characters, really not a good combination. But if we could take away any real moral from the story it's that people can change, and not just from regaining eyesight, these things happen, and you just have to be careful about heavily investing your life into someone when they can completely change. And to realise when you are both no longer compatible for each other and when to walk away. Clearly this movie deals with this in a very negative way, and ultimately the ending was just downright depressing.
So to answer the initial question 'It's not really a thriller, so what's it supposed to be?', well it's kind of like a very average drama with unlikeable characters, really not a good combination. But if we could take away any real moral from the story it's that people can change, and not just from regaining eyesight, these things happen, and you just have to be careful about heavily investing your life into someone when they can completely change. And to realise when you are both no longer compatible for each other and when to walk away. Clearly this movie deals with this in a very negative way, and ultimately the ending was just downright depressing.