You may find the grit is just smaller than you expect, and still there. It will wash out of its own accord soon enough. I get this occasionally, especially since I wear contact lens. Sometimes, the grit or fluff will come out with the lens and I can clean it from there, but if it stays in then pulling the eyelid forward so that it's not in contact with the eye, then rolling the eye around, can help free things up.

An impromptu eye bath often helps, too. Clean luke-warm tap water works fine, just make sure the sink is very clean first.