Black Spot in Vision

So yesterday at the office we were screwing around with some nerf guns (originated months and months ago with using one to get someone's attention that head noise canceling headphones on and has evolved into an office nerf war since then, pretty cool actually) and one hit the very outside corner of my left eye. It hurt a lot for a little bit, but eventually went away. When I just woke up I noticed that I had a black spot in my vision though. It only really appears after I blink and then it fades away within like a second and it's in the opposite corner of my vision, so basically around where my nose is. Is this something serious that I should get checked out, or just some residual trauma to my eye that will go away soon enough? Original incident occurred around 2pm CT Aug 24th and as of writing this it is 7am CT Aug 25th, so its been about 7 hours since the incident occurred.