Obivin 0.3% Eye Drop is a sterile antibiotic ophthalmic solution primarily formulated with Tobramycin (0.3% w/v) to treat various bacterial infections of the eye. It works by stopping the growth of bacteria, effectively managing conditions like conjunctivitis and corneal ulcers caused by susceptible organisms. This prescription medication is typically dispensed in a 5 ml bottle and is designed for topical application to the surface of the eye.