A foreign body (FB) or object becomes stuck in the eye.

Bacterial infection of the eye. Main symptom is lots of yellow or green discharge (pus) in the eye.

A viral infection of the eye. The main symptom is a pink or red eye.

Injuries to the eye, eyelid, and area around the eye.

Eye irritation from getting an irritating substance in the eye. The main symptom is a pink or red eye.