Case: Return to the Case Based on the slit lamp findings, you diagnose Tom with herpes simplex keratitis. You give him a prescription for Valacyclovir 1 g TID, arrange next day ophthalmology follow-up, and give him return instructions to come back if his pain worsens or vision deteriorates.  This post was copyedited and uploaded by Kimberly Vella. References Walker R, Adhikari S. Eye Emergencies. In: Tintinalli’s Emergency Medicine. New York, NY: McGraw-Hill Education.; 2015:1543–1579. … Continue reading Approach to Corneal Disorders in the ED