Red Eye ddx Lids/orbit/lacrimal system Hordeolum / chalazion Blepharitis Entropion / ectropion FB / laceration Dacryocystitis / dacryoadenitis Conjunctiva / sclera Subconjunctival hemorrhage Conjunctivitis Dry eyes Pterygium episcleritis / scleritis preseptal / orbital cellulitis Cornea FB (including contact lens) Keratitis…