I have many things that affect my eyes. I have dry eyes, but I also get gunky gritty burning eyes from almonds, almond milk, rice, rice milk, any kind of bread, potatoes, and anything dairy. Cannot seem to find any research answers to why. It usually happens overnight, after I've had any of those things. Very frustrating. Also, any type of screen time makes them burn and feel gravelly, within just a few minutes. I wish I had answers for you, but mostly questions, as well. ....But you are not alone in this quest