I don't think it has anything to do with VR so much as I had no issues what so ever my first year using the Rift. I had other things going on and did not use VR for some months as I took a long break from things. I went to the doctor and was prescribed glasses for the first time in my life, yay. They scanned my eyes with several machines and whatnot and told me the medicine I am taking appears to be helping as the ocular migraines where less frequent. Anyway I was just curious about eye health so the question may be slightly off topic but still relevant enough.