A couple of years ago I got a rather bad case of conjunctivitis which was caused by dry eyes creating friction between my eyes and my contact lenses. It's known as "giant papillary conjunctivitis" or GPC.
It was painful and resulted in light sensitivity and a strange "haze" to my vision, as if looking through a dirty glass. It also messed with my depth perception in an odd way because the "haze" somehow reduced my perception of image contrast, which can be a depth cue.
I only mention this because I might have characterized it as "blurry" vision, although it really isn't. It took a long time to resolve using both prescription and regular eye drops, but it finally went away.
As mentioned above, seeing an eye doctor would probably be a good idea. There are things I might not give my highest priority, but vision isn't one of them.