Hi, I was diagnosed with OMG from a positive Tensilon test, which was done by a neuro-ophthalmologist. My SFEMG was negative, but the neurologist stated that the EMGs can be negative, particularly with ocular MG.

I had been started on Mestinon several months before the testing, purely on clinical symptoms. Although the mestinon did not totally alleviate my double vision, it did clearly decrease my double vision and make my eyes feel "more relaxed."

Have you had a Tensilon test? If not, this might be an option. If you're having purely ocular symptoms, this test would be best performed by a neuro-ophthalmologist.

Cate