I live with visual snow as long as I can remember and haven't realised that the way I see isn't normal until I've read about the phenomenon by accident.
There are two different types of visual snow AFAIK: colourful and black/white, more like static. I have the latter, which is theorised to stem from hyperactivity of frontal lobe. I also think that developing it later on, in adult life, can impact quality of life, but if someone has grown with it, like me, it is most often not the case.
Month ago I've started taking piracetam as a supplementary drug to lamotrigine for my LTLE and noticed that after few days, when I got "saturated" with the substance, the visual snow got significantly more intense. Now, piracetam is kind of in a weird spot, seeing that it is approved and used to treat memory issues and as anit-myoclonic drug, but there is no solid scientific evidence that it does anything and that it doesn't act like a placebo. Here I have a definitive proof that it does something because I have not expected this effect to surface at all - no one ever mentioned this mechanism, at least I haven't found any mention of this in any publication I've read before asking my neurologist about the drug.
So now I see visual snow in conditions when I've barely saw it before. When it's lights out is where the fun starts, world looks like everything is covered in a f**** glitter. But I don't mind, because I feel the drug is beneficial for my cognitive function and I can stay more focused and need less sleep. More static is low price to pay for that.