A foreign body is something such as an eyelash, sawdust, sand, or dirt can that gets into the eyes. The main symptom is irritation or pain.
With your child bending forward, try to get flakes of glass off the skin by blowing on the closed eyelids. A few pieces may be removed from the eyelid by gently touching them with a piece of Scotch tape. Pour water over the eyelids and face to get off any remaining glass. Cover the eyes with a wet washcloth and call your child's healthcare provider. The eye should not be rubbed.
If there are a lot of small particles in the eye (such as dirt or sand), clean around the eye with a wet washcloth first. Then have your child try to open and close the eye repeatedly while submerging that side of the face in a pan of water. If your child is too young to cooperate with this, hold him face up under a gently running warm water tap or pour warm water into the eye. The eyelids must be held open during the irrigation.
If the particle is in the corner of the eye, try to get it out with the corner of a clean handkerchief or a moistened cotton swab.
If the particle is under the lower eyelid, pull the lower lid out by depressing the cheek and touch the particle with a moistened cotton swab. If that doesn't work, try pouring water on the speck while holding the lid out.
If the particle can't be seen, it's probably under the upper lid (the most common hiding place). Try having your child open and close the eye several times while his face is submerged in a cake pan or pie pan of water. If this fails, pull the upper lid out and draw it over the lower lid. This will sometimes dislodge the particle.
(While your child is waiting to be seen by the healthcare provider, cover his eye with a wet washcloth or bandage it shut to relieve discomfort.)