Has anyone heard of silent migraines and how they effect vision?!

Has anyone heard of silent migraines and how they effect vision?

What causes them?

I used to have ocular symptoms with my worst migraines...was kinda like tunnel vision...the outside of my vision got dark and closed in on my central vision. This then was followed by a full blown migraine. It was always temporary and was what my neurologist called the "prodrome" or "migraine aura". My visual symptoms would usually go away in 10-30 minutes, then came the headache (tho some people do not get that headache), and from my personal experience, the longer my visual aura, the worse my migraine.

There are sometimes migraines where there is no actual headache, only ocular symptoms. I have done medical transcription for a neuro-ophthalmologist who has diagnosed these for a few people. Generally from what I've read, there are some "positive visual phenomenon", like wavy lines, black tunnels, white or black spots that march across your vision, lasting only short times, then disappear as quickly as they started. From what I have read and typed, the structural eye exams are normal, meaning that nothing out of the ordinary is found. The visual symptoms are temporary and do not seem to have any effect on permanent vision.

If you are having some "ocular migraines" try to document what is going on around the time you get them...will help your doctor/optometrist/neurologist figure out if this is truly an ocular migraine or if it is something else. I would try to schedule an appointment just to check things out, but the emergent nature is not there.

If you have a sudden loss of vision, or double vision, that does not go away within a few minutes, do not hesitate to get to your eye doctor as soon as you can, as that can mean other eye problems.