General

• Medical emergency due to high risk of vision loss

• Unilateral in presentation, but fellow eye is at risk Symptoms

• Blurry vision

• Halos around lights

• Systemic symptoms may develop

• Nausea/vomiting

• Abdominal pain

• Diaphoresis Signs

• Cloudy cornea caused by corneal edema

• Conjunctival hyperemia

• Pupil semidilated and fixed to light

• Eye will be harder on palpation through closed eye Diagnostic Tests

• Gonioscopy—anterior-chamber angles will be closed. Peripheral anterior synechiae may be present

• Applanation tonometry—elevated IOP (greater than 21 mm Hg but when symptoms are present IOP may be greater than 30 mm Hg)

• Slit-lamp biomicroscopy—reveals shallow anterior—chamber depth. Signs of previous attacks include Peripheral anterior synechiae, iris atrophy, glaukomflecken, and pupillary dysfunction

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