This issue of Primary Care: Clinics in Office Practice, Guest Edited by Dr. Joel J. Heidelbaugh, is devoted to Primary Care Ophthalmology. Dr. Heidelbaugh has assembled a group of expert authors to review the following topics: Approach to Red Eye for the Primary Care Practitioner; Ophthalmic Herpes/Shingles; Diabetic Retinopathy; Uveitis; Age-related Macular Degeneration; Glaucoma; Conjunctivitis; Corneal Abrasion; Strabismus; Cataract; Causes of Acute Visual Loss; and Flashes and Floaters.