Assuming that you have sculpted with dyntopo and x-mirror. The dyntopo doesn’t mirror exactly, only the shape so for thin parts like eyelids you can get artifacts. Use Dyntopo, symmetrize, x to -x to clean it up. If that doesn’t work. Try positioning the eyes by typing in the coordinates. By the way, the forehead is too flat.
Thanks for comment. Problem was it’s origin not centered.