It can happen to you, please play it safe.
Like a lot of other folks I felt bad when Zach Davis had to retire from MMA due to torn retinas after his loss to Chuck O'Neil during TUF 13. A few weeks after that episode aired I returned to training after nearly six months and was determined to catch up on lost time and take full advantage of new programs offered at my school. Well that was the plan anyway.
During my time off my left eye had been giving me some trouble and I had scheduled an appointment to check things out. I had had some retina trouble ten years ago but corrective surgery had fixed it and nothing had come up since, in fact my vision had improved over that time period. Today I received a call to come in for a check up at 3:30. At 5:30 the doctor gave me the bad news. I had suffered a minor, spontaneous hemorrhage behind my retina. Coupled with my previous surgery the doctor told me I could no longer train, even minor impacts could detach or tear my retinas or cause another hemorrhage.
So here I am, a week back and I have to stop permanently. I donated my sparring gear and Gi to the school for any students that couldn't afford some and said my goodbyes.
I'd just like to remind everyone to watch for the warning signs. Sudden blurry or minor loss of vision, even in only a small portion of your eyes, can be the symptoms of a larger problem. Don't try to tough it out, see a doctor right away. Part of not training stupid is knowing when somethings wrong and getting it corrected, even if it means you can't do what you enjoy anymore.