The Evolution of Antiviral Therapy for External Ocular Viral Infections Over Twenty-five YearsGordon, Y. Jerold M.D.Cornea: September 2000 - Volume 19 - Issue 5 - p 673-680 Articles Abstract Author Information Purpose. To review the past 25 years of the evolution of antiviral therapy for the treatment of common external ocular viral infections (herpes simplex virus type 1, varicella-zoster virus, and adenovirus). Methods. A broad-based literature review in the fields of virology, antiviral research, and ophthalmology will be carried out. The pathogenesis of the major external ocular viral infections and history of antiviral development will be cited. Important conceptual breakthroughs as well as historical landmarks will be emphasized. Results. The successful development of effective antivirals to treat the most common external ocular viral infections have dramatically reduced morbidity and sight loss. The immune pathogenesis of herpetic stromal keratitis is better understood. Conclusions. Remarkable progress in the development of antiviral therapy has occurred over the past quarter century. Future needs include improved antivirals and immunomodulators and vaccines to prevent and treat herpetic ocular infections and adenovirus keratoconjunctivitis. From the Department of Ophthalmology, The University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, U.S.A. Submitted February 16, 2000. Accepted April 30, 2000. Address correspondence to Dr. Y. Jerold Gordon, the Department of Ophthalmology, The University of Pittsburgh School of Medicine, 203 Lothrop Street, Pittsburgh, PA 15213, U.S.A. © 2000 Lippincott Williams & Wilkins, Inc.