Acute Angle-Closure Glaucoma (Acute Glaucoma): Emergency, Symptoms, and Treatment

Acute angle-closure glaucoma is a medical emergency that requires immediate treatment to prevent vision loss.

In plain words

Acute angle-closure glaucoma is a serious eye emergency. It happens when fluid in your eye can't drain properly, causing sudden high pressure. This can damage your vision quickly if not treated right away. The main signs are bad eye pain, blurry vision, headache, nausea, and seeing rainbow rings around lights. It is most common in older adults and people with a family history of glaucoma. You need to get medical help immediately if you have these symptoms. At the hospital, doctors will give medicine to lower the eye pressure. They may also do a laser treatment or surgery to help the eye drain fluid better. Without fast treatment, you could lose your eyesight permanently.

What is Acute Angle-Closure Glaucoma (Acute Glaucoma): Emergency, Symptoms, and Treatment?

Acute angle-closure glaucoma is a medical emergency that requires immediate treatment to prevent vision loss.

Symptoms

Early symptoms

  • Early signs of acute angle closure glaucoma: Early symptoms vary depending on the underlying cause. See a doctor for evaluation if you notice unusual changes. (1) (2)

Serious or emergency symptoms

  • Severe eye pain: Sudden, intense pain in one eye, often described as throbbing or aching. This is a hallmark symptom of acute angle-closure glaucoma. (1) (3)
  • Blurred vision: Vision becomes suddenly blurry or cloudy, often accompanied by difficulty seeing clearly. (1) (5)
  • Headache: Severe headache, usually located around the forehead or temples, often accompanied by eye pain. (1)
  • Nausea and vomiting: Feeling nauseous or vomiting due to the intense pain and pressure in the eye. (6) (3)
  • Halos around lights: Seeing rainbow-like halos or rings around lights, especially in low-light conditions. (1) (3)

Causes

Primary causes

  • Blockage of the drainage angle: The iris blocks the drainage angle in the eye, causing a sudden increase in intraocular pressure. (3)

Risk factors

Family history

Having a family history of acute angle-closure glaucoma increases your risk of developing the condition. (3)

Diagnosis

Acute angle-closure glaucoma is diagnosed through a thorough eye examination, including measuring intraocular pressure and assessing the drainage angle in the eye. Your doctor may also check for signs of optic nerve damage.

Tonometry

Measures the pressure inside your eye. High intraocular pressure is a key indicator of acute angle-closure glaucoma. (2)

Treatment

Medication options

Medications to lower intraocular pressure

These medications help reduce the pressure inside the eye, which is crucial in treating acute angle-closure glaucoma. (2)

Lifestyle and self-care

  • Preventive measures: Regular eye exams can help detect eye conditions early and prevent complications like acute angle-closure glaucoma. (8)

Always discuss dosing and treatment changes with your own prescriber.

Possible complications

  • Permanent vision loss: If not treated promptly, acute angle-closure glaucoma can lead to irreversible damage to the optic nerve and permanent vision loss. (1)

When to see a doctor

Routine follow-up

    Seek emergency care

    • Seek emergency medical help immediately if you experience symptoms of acute angle-closure glaucoma, such as severe eye pain, blurred vision, headache, nausea, or halos around lights. (1) (5)

    Frequently asked questions

    Is Acute Angle-Closure Glaucoma an emergency?

    Yes, acute angle-closure glaucoma is a medical emergency that requires immediate treatment to prevent permanent vision loss. (1)

    What are the warning signs of Acute Angle-Closure Glaucoma?

    Warning signs include sudden, severe eye pain, blurred vision, headache, nausea, vomiting, and seeing halos around lights. (1) (3)

    What should I do if Acute Angle-Closure Glaucoma happens?

    Seek emergency medical help immediately. Do not delay treatment as it can lead to irreversible vision loss. (1) (5)

    How quickly do I need help for Acute Angle-Closure Glaucoma?

    Immediate attention is required. Delaying treatment can result in permanent vision damage. (1)

    What happens at the hospital for Acute Angle-Closure Glaucoma?

    At the hospital, treatment typically involves medications to lower intraocular pressure, followed by laser or surgical procedures to restore fluid drainage in the eye. (4)

    References

    1. National Health Service — Acute angle-closure glaucoma source 1
    2. U.S. National Library of Medicine — Glaucoma source 2
    3. Mayo Clinic — Glaucoma source 3
    4. National Health Service — Glaucoma Treatment source 4
    5. Mayo Clinic — Acute angle-closure glaucoma source 5
    6. U.S. National Library of Medicine — Glaucoma source 6
    7. National Health Service — Glaucoma source 7
    8. Mayo Clinic — Glaucoma source 8