I was put on Keppera the first of December. Within two weeks my eyelid in my left eye started drooping and I started noticing double vision. I was seen by an Optometrist and tested out to have 3 Diopters of Vertical prism. When I returned to my neurologist and complained about my double vision and eye drooping he ran teat on me thinking I had Myasthenia gravis. The blood test came back negative. He said he still believed that I had MG and put me on an additional medication to treat MG. That was three weeks ago. The new medication is not helping or improving. I went to see a Ophthalmologist and My prism is now over 6 diopters. My doctor swears it could not be the Keppra and refuses to take me off of it.. I really feel it is the Keppera. Just a feeling Any advise?

Hi Amzingeyes

Welcome to NeuroTalk .

My understanding is that Keppra is commonly used to treat people with epilepsy rather than MG.

The information about it here may help you.

Keppra Uses, Dosage & Side Effects - Drugs.com

All the best.

What medication for MG did your neurologist prescribe? Some meds should take effect in a half hour and some meds take a few months. Some meds don’t do a great job on eye issues. Please let us know. Jim

Mestinon is what I was put on for MG

Mestinon usually takes effect in about a half hour. Did you have a MuSK test? (a blood test). Sometimes mestinon doesn’t work on eye issues. Jim