Since the first edition that was published in 1998 we have seen manychanges in ophthalmology from advancements in laser surgery to new techniques in cataract surgery. With these new developing advancements symptoms, diagnosis, and treatments in ocular disease have also begun to change. Early diagnosis and management of ocular infection is essential to avoid the risk of blindness. An understanding of the related disease process and drug therapy is a key aid in achieving this. The updated Ocular Infection Second Edition covers the basic science of ocular infection, as well as its diagnosis and management of ocular disease, and the changes it is going through.