Is that an answer or a referral to yourself?
If you haven't noticed, it seems to be quite popular amongst the MDs on this board, replying with a single dash. I've asked before what it means, and supposedly means, "read it, got no further comments".
The phenomena of seeing your own cells, is called blue entopic field phenomena, or Scheerer's phenomenon. Your question is something no one can firmely answer, it would only be speculation or theorycrafting at best. I used to study them as well, and i'd discover how they would (over time) be an ever growing population. If it's related to my autoimmune retinopathy, i can only speculated, but personally I do think so.
As a new member I apologize for not recognizing that symbol. Anyway...
Sorry I am getting lost with your pronouns. What seems to multiply? The presence of static snow or your perception of cells (For this question we disregard my theory)? Did they seem to multiply because you noticed more over time? If you find yourself looking at your cells/etc try to see if you can distinguish them between the static snow. I am trying to find people who can make this distinction or not. If enough people are unable to draw a distinction between the phenomena and the snow then we might be one to something. Of course the reliability of this data is very questionable, but I am willing to put a good amount of faith into the perception of others.