Pediatric patient
Corneal haziness, opacity, or limbal ischemia (paleness at limbus)
With 24hr ophthalmology follow-up
If only has corneal epithelial injury
Encourage use of artificial tears and other lubricating eyedrops
Encourage use of artificial tears and other lubricating eyedrops
Caustic keratoconjunctivitis
Caustic ingestion
Epidemic keratoconjunctivitis
Caustic eye exposure 
Gonorrheal conjunctivitis
Caustic dermal burn
Allergic conjunctivitis
Airbag-related burns