@julie1976 I started losing vision in my left eye. The eye Dr thought it was glaucoma but my vision rapidly got worse. Finally I had a MRI ordered and found the tumor in July 2018. They don't know what caused it or how long I had it. The tumor is wrapped around my carotid artery and optic nerve so the neurosurgeon could only get 85% of it. I have lost most vision in left eye and will eventually lose all of it in that eye. I will go for MRIs regularly to make sure everything is okay.