Antibiotic eye drops are usually used when there is a bacterial eye infection, such as yellow discharge, sticky eyelids, redness, swelling, or infection after injury or surgery. They are not helpful for every eye problem, especially allergies, viral infections, or simple dryness. Some commonly used antibiotic eye drops include chloramphenicol, moxifloxacin, tobramycin, ciprofloxacin, and ofloxacin. Different drops are chosen based on the type and severity of infection, the patient?s age, contact lens use, or any previous eye conditions. For example, stronger antibiotics are sometimes preferred in contact lens users because certain bacteria can affect the cornea more seriously. Mild infections may improve with simpler medicines and proper hygiene, while severe pain, light sensitivity, blurred vision, or thick discharge needs urgent eye evaluation. It is important not to use antibiotic drops repeatedly without proper diagnosis because unnecessary use can lead to resistance or irritation. If symptoms are recurring or not improving within a few days, an ophthalmologist should examine the eye to identify the exact cause.