Black eye symptoms may include:
Pain around the eye;
Swelling around the eye, which can be mild at first, then increasing later. Swelling may make it difficult to open the eye;
Discoloration (like a bruise) around the eye. The skin around the eye may be red at first, then grows darker, progressing to purple, yellow, green or black;
Blurred vision.
Signs of a more serious head injury require medical attention, and may include the following:
Double vision;
Vision loss;
Blood on the eyeball surface;
Inability to move the eye;
Severe or ongoing headache;
Fainting/loss of consciousness;
Blood or fluid coming from the ears or nose;