So, came down with a bout of bronchitis that lasted 3 weeks. The coughing was so bad I actually ruptured a vessel in my right eye. I now have a big hazy blotch in the center. Like a dirty lens on glasses. I can still aim and my sight is decent...but it's a pain in the butt. I was getting light flashes and lines. Worried it was a retina tear. They did a ton of tests and all's well in that regard...but bronchitis is no friggin joke!