Why all of a sudden would my vision get crossed?

[TraceHudson64]

I do wear glasses Presbyopia and wear progressives - my script needs to be updated and adjusted because sometimes I'll have blurry vision while using my glasses so it's time for a check up.  Is this a sign of glaucoma - which runs in my family. I have had migraines over past few weeks, lately a little stress and today I'm very tired and have had a bad headach since last night.  I was sitting here at work and all of a sudden my vision started crossing and I began to get dizzy.  I backed away from my desk and pulled my glasses off, I felt as if I was fading to black, I then shook my head a couple of times, my heart was racing from panicking and it returned to normal vision about 20 seconds later.  I've never experienced this.  When migraines occur I have had my vision very blurry at times and I take my DHE 45 injection and within and hour or two things are ok.  It just freaked me out like I knew what what happening, couldn't control it panicked then finally normalcy - I've read some people have experienced this but thought I'd put my specifics in so see what it might be.

[JohnHaganMD]

No its not a sign of glaucoma. Unfortunately most types of glaucoma do not cause symptoms until the very late stages (exception acute angle closure glaucoma which would not cause your problem).  Need to work with your personal physician to run down the many possible causes.