Dear Dr. I am 63 years old. I am having twitching in my left eye for the last many years. I was prescribed neurobion and I was used to get relief. But now taking neurobion regularly gives me no relief. I also had light flashes in the left eye and for that I am taking eye drops system Ultra and Megabrom and for eye flashes I have some relief. But heaviness and twitching in the left eye is not going.