My husband and I both take L theanine for twitching and tics. I was prescribed an antipsychotic for my non verbal tourrets and took it for about 35 years. L theanine works better and with no side effects. It is also great for relieving stress, which is probably what is affecting your eyes.

I get the spasming eyelid from stress and sometimes from too much reading. I have the added bonus of dry eyes and ears. So my eyes will tear up and run. Then the icky discharge that will seal my lashes overnight…what a joy. I have tried a warm damp compress for my eyes

I also have pain in my eye at times and most times it feels tired and dry,

Yes sometimes

Yeah when I'm getting stressed mine does too. Dr's said my twitches and vision blurry/headaches from fibro xx