TY - CHAP M1 - Book, Section TI - Corneal Ulcer A1 - Singh, Manpreet A1 - Whitfield, Denise A2 - Knoop, Kevin J. A2 - Stack, Lawrence B. A2 - Storrow, Alan B. A2 - Thurman, R. Jason PY - 2021 T2 - The Atlas of Emergency Medicine, 5e AB - A corneal ulcer is an inflammatory and ulcerative keratitis. Common infectious etiologies include bacteria (Staphylococcus, Streptococcus, Pseudomonas) and viruses (HSV, adenovirus). Bacterial corneal ulcers are commonly associated with extended-wear contact lenses. Rare causes of corneal ulcers include fungal infections and Acanthamoeba, a ubiquitous protozoan associated with contaminated contact lens solutions. Fungal infections may also arise from trauma involving vegetable matter such as a tree branch. Acanthamoeba infections may also occur from swimming in lakes, especially while wearing contact lenses. SN - PB - McGraw-Hill CY - New York, NY Y2 - 2024/11/05 UR - accessemergencymedicine.mhmedical.com/content.aspx?aid=1181038439 ER -