An eye infection occurs when harmful microorganisms, such as bacteria, viruses, or fungi, invade the eye or its surrounding tissues. Common types include conjunctivitis (pink eye), keratitis, and blepharitis. Symptoms may include redness, swelling, pain, discharge, and blurred vision. Treatment for eye infections often involves antibiotic or antiviral medications, depending on the cause. It's essential to seek medical attention if symptoms worsen or do not improve, as untreated infections can lead to serious complications, including vision loss. Maintaining good hygiene, such as washing hands and avoiding touching the eyes, can help prevent infections.