A second group of antibiotics are classed as bactericidal. These are medications which destroy the bacteria’s ability to build its defensive cell wall or which act inside the bacteria, interfering with the chemicals essential to its life cycle. These antibiotics tend to be reserved for specific cases, where a dangerous bacterium is suspected or has been identified, or if an infection is present in the avascular cornea or inside the eye. Here the function and integrity of the ocular tissue can be permanently damaged within hours. (6)
As patients being treated with these medications tend to be under the close supervision of an ophthalmologist, they tend not to be in our practices until they have been discharged from care. Therefore, we will discuss them in less detail.