You raise a very good question!! While we are not Dr.s and can't give medical advice. But we can talk from personal experience. I am Seronegative meaning my blood test were negative. I was sent to a neuro ophthalmologist because of ptosis, and other vison issues. Mestinon helps my ptosis. I can appear to close my eyes tightly. But if the attending Dr. tries to open them, I have no resistance and can't keep them shut. And neuro Ophthalmologist just studies the eyes and neuro pathways. A Neurologist studies the full bodies neuropathways. Again, not a Dr and not trying to give medical advice but I have been there with conflicting Dr.s.... But to me It sounds like your neuro ophthalmologist needs to have a talk with your consulting neurologist !! Hug to you!! Sally Farrier... Myasthenia-Gravis.com (team member).