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Also known as: acute angle closure · AACG · acute glaucoma
A sudden rise in intraocular pressure from blockage of aqueous drainage — a painful red eye with blurred vision, haloes around lights, headache and nausea/vomiting, with a fixed mid-dilated pupil. A sight-threatening emergency.
Hypermetropic (long-sighted) eyes, older adults, Asian ethnicity and women; precipitated by dim light, pupil-dilating drops and some medications (anticholinergics, sympathomimetics).
Lower intraocular pressure urgently
Definitive treatment (both eyes)
Guidelines change. If something here is out of date, tell us — we keep these current.
🚩 Report outdated / suggest update