Blurry vision bug

I wish I could submit a photo with the report but a few weeks ago I was playing a Competitive Ranked match when my entire screen went blurry while I was playing. It started when I went into the death match waiting lobby but then once the match loaded up it went to the home screen like normal but my screen wasn’t blurry. Then afterwards I loaded into my match and my entire screen was blurry again. I ended up having to close the game application suffering a automatic lose to my record just to fix the error. It hasn’t happened since but I thought it should still be reported.