<prompt> Which one of the following drugs is contraindicated in treatment of dendritic corneal ulcerAtropineCefazolinAcyclovirDexamethasone  <response>: Ans.d DexamethasoneRef: A.K. Khurana 6th ed. 108-109 Dendritic ulcer is an irregular linear branching ulcer with knobbed ends and reduced corneal sensations seen in epithelial keratitis It is caused by herpes simplex infection. Steroids cause progression of dendritic ulcer, into geographical ulcer so, they are contraindicated. The treatment is done with 3 acyclovir ointment and mechanical debridement. Other antibiotics may be required if there is a secondary infection. 