I have dry eyes too. Doc told me it's usually an autoimmune issue or hormonal. He will not admit it could be because of my celiacs disease, he prefers to think hormonal. Dry eye can be very painful, I am going through a bout of it now.

I also suffer from optical migraines. They start out with hazy vision all around the outer edges of my eyes, like heat waves on a hot summer day over a field. If I take Excedrin quickly, I can usually keep from getting a regular migraine too, but if I don't get it quick enough, then it hits me too. Sometimes I get very dizzy before it leaves. Optical migraines usually last a short time, an hour or so for me.