Can this scalp cyst and removal be causative for blurred vision?

I really hate to admit this but fifteen years ago I noticed a tiny watery filled bump on my scalp and just let it grow! It was so slow growing for so many years I kept thinking it would stop growing and I could also easily cover it with my hair. For many years I just stopped remembering it was there. Then about two years ago it appeared to be growing so fast I couldn’t cover it anymore and, to my horror, I noticed people began looking at it. It became at least ¼” high. I went to a dermatologist , scared to death. I was on my back with a bright light over me and her assistant put six 6 shots all around it, I assume Lidocaine. Then the lady doctor came in and began to push the contents out. I felt nothing until she began to stitch it up. The pulling of the skin to connect the edges was so intense; she was using her arm muscles to do it like she was taking some dreadful anger out on my head. Then I was bandaged up and staggered out, dizzy. Is it possible that this procedure has caused my blurred vision that began months later? I doubt it but wanted to ask you all. It still itches a little bit.