Also known as conjunctivitis, the pink eye is a symptom of bacterial infection rendering both the eyes of an individual pink in color and causing a severe pain or inflammation on the eyes. Some of the easily noticeable pink eye symptoms include redness, irritation and a vigorous inflammation in one or both the eyes simultaneously. As has already been mentioned above, a pink eye complication or conjunctivitis occurring in one eye affects another eye due to bacterial infection. Being a contagious disease the pink eye symptom spreads from one person to another due only to an un-hygienic condition or infection.