Well, in my opinion, smoking can just lead to visual snow. So anyway, you should give up smoking, or it will just make the situation more and more serious. Generally speaking, when you smoke, it will make bilirubin, which is a byproduct of old red blood cells, cannot be filtered by the liver as efficiently. So in this way, visual snow can be possible. And vision snow can be very annoying and dangerous. On the other hand, by smoking, there are also some long term effects. For example, it can lead to lazy eyes, and hearing loss. And also, it can degrade the night vision. Anyway, it can be kind of dangerous.