Acute angle closure glaucoma

• Facts:
  Acute increase in intraocular pressure
• History / PE:
  Unilateral eye pain, reddness
  Acute vision loss
  Nausea/ vomiting
  Patients complain of seeing "halos" around eyes
  Mydriasis
• Diagnosis:
  Ocular tonometry
• Treatment:
  Acetazolamide (decrease intraocular pressure)
  Laser peripheral iridotomy (permanent fix)
• Complications:
  Permanent vision loss within 2-5hrs after symptom onset
• Associated With:
  Periods of prolonged pupillary dilation (darkened movie theater)
  
• Differential Diagnosis:
  Migraine
  Cluster headache
  Temporal arteritis
  Keratoconjunctivitis