Causes
Trauma: road accidents, fights, bites. Brachycephalic breeds (with prominent eyes) are much more prone, sometimes from a mild knock.
Diagnosis
Immediate visual diagnosis.
Treatment
EMERGENCY: keep the eye moist (saline, a soaked gauze) and go to the vet immediately. The vet will try to reposition the eye; depending on the damage, it sometimes has to be removed.
Prevention
In breeds with prominent eyes, avoid risky situations and handle them carefully.

