Twitch in Right Eye That Has Gone on for About 2 Months. Could This Be Related to Migraine Surgery?

I had decompression migraine surgery in March 2012. The zygo nerve was snipped and corrugators re-sectioned. I have seen an ophthalmologist who is unaware of my surgery who prescribed lubricating eye drops. He did an eye pressure test only. I am worried that this is due to nerve damage or muscle weakness due to surgery.

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