Have growths in the corner of each eyelid that pop a couple times a day and what feels like a grain of sand comes out. ophthalmologist doesn't know. ?

Meiobian gland: these glands secret fluid to protect the eye. Why it is having mineralization of the fluid is a mystery but it sounds benign. The Sjogren's syndrome could be the issue as this decreases your fluid and could be causing a dry eye, so artificail tears might be useful when you feel that grainy sensation and it isn't a grain but lack of fluid.