Acute Glaucoma Attack (Narrow Angle): Symptoms & First Aid (Eye Emergency)

An acute glaucoma attack is an absolute eye emergency that requires immediate medical attention – Glaucoma surgery. It is usually triggered by narrow-angle glaucoma and is characterized by a sudden increase in intraocular pressure. 

The dramatic glaucoma symptoms are not only painful, but can lead to irreversible vision loss within a few hours. Here you will find out what symptoms you need to know and what first aid you can provide before you reach our eye centre or the emergency room.

Glaucoma attack in the Stuttgart area

Glaucoma attack in the Stuttgart area – book an ophthalmologist appointment now!

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Whether you have vision problems, an eye condition, or are simply looking for preventive care, my team and I are here to address your needs at our various locations in the Stuttgart and Karlsruhe areas. When you come to me for treatment, you’ll benefit from comprehensive diagnostics and consultation, state-of-the-art laser procedures, and 27 years of experience – Dr. Liliana-Iulia Bányai

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The Dramatic Symptoms: Acting Quickly is Vital

An acute glaucoma attack is not an insidious process, but a medical eye emergency. It manifests itself in abrupt, extreme symptoms that you must not ignore.

The severe pain and rapid loss of vision are direct consequences of the massively increased intraocular pressure. With these signs, every minute counts to prevent irreversible damage to the optic nerve and thus complete loss of vision.

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Unmistakable signs: Severe pain, nausea and visual impairment

Imagine the pressure in your eye skyrocketing:

  • Massive pain: You suddenly experience stabbing eye pain and severe headaches in the temporal area, often accompanied by nausea and vomiting.
  • Loss of vision: Your vision deteriorates rapidly; you only see blurred or notice clear colored rings (halo phenomena) around light sources.
  • Optical hardness: The eyeball feels hard and is severely reddened.
  • Attention: The seizure can drive the eye pressure to 60 mmHg or higher.

Risk of blindness: What the increased intraocular pressure causes

The sudden increase in intraocular pressure up to 60 mmHg or higher is the main danger. This extreme pressure pushes off the sensitive structures of the retina and optic nerve.

If the condition remains untreated, the acute lack of pressure of oxygen and nutrients quickly leads to vision loss and blindness. Rapid and comprehensive glaucoma diagnostics is important. Seek immediate medical attention for the symptoms mentioned to avoid irreversible damage.

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What is an acute glaucoma attack and how does it occur?

An acute glaucoma attack poses a massive threat to your vision. It is fundamentally different from the chronic cataract, which develops gradually. During seizures, the intraocular pressure does not rise over weeks or months, but within a very short time to extreme values of 60 mmHg or higher. The cause is always a sudden disturbance in the aqueous humor drain.

Cause: Sudden relocation of the chamber angle

The problem lies in the angle of the ventricle between the iris and the cornea. In narrow-angle glaucoma, this angle is anatomically narrower. If there is a sudden blockage (e.g. due to an expanding pupil in the dark), the drainage channel for the aqueous humor is abruptly blocked. The fluid accumulates in the anterior chamber. This leads to an explosive increase in eye pressure, which puts the optic nerve at acute risk.

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The difference to chronic glaucomas

Chronic glaucomas are the most common eye disease of this type and develop gradually. Here, the drainage channel via the trabecular system is blocked, but not abruptly blocked, causing the intraocular pressure to rise slowly.

In contrast, the glaucoma attack leads to the acute risk of massive vision loss due to the sudden blockage. The chronic form often shows visual field defects late, while the seizure requires immediate emergency treatment.

First aid: What you need to do immediately (emergency measures)

An acute glaucoma attack does not tolerate delay: it is an emergency that must be treated immediately to save vision.

Do not hesitate and call the ophthalmic emergency service immediately or go to our eye center or the nearest emergency department immediately.

Every minute of delay can lead to irreversible vision loss.

Medicinal pressure reduction as the most important immediate measure

The primary first aid is the immediate lowering of the massively elevated intraocular pressure. This is done in the clinic by special drug treatment methods, including pressure-lowering eye drops and systemic medications (e.g. infusions).

This is the only way to quickly relieve the pressure on the optic nerve. Once the eye pressure is lowered, definitive glaucoma therapy can be initiated.

The definitive treatment: surgical technique and laser procedures

After the eye pressure has been stabilized as part of the first aid, a definitive green cataract treatment is necessary. The surgical technique aims to permanently open the angle of the ventricle and thus prevent a renewed attack of glaucoma.

Treatment is usually carried out in our eye centre by minimally invasive laser procedures or a surgical procedure.

Iridotomy and surgical procedures for angle opening

The standardized surgical technique is laser iridotomy. A special laser (YAG laser) is used to create a small opening in the iris. This creates an alternative drainage channel for the aqueous humor. 

In the case of a massive or chronic blockage of the anterior chamber, our ophthalmologists may also recommend surgical procedures or preventive cataract surgery for permanent angular opening.

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Long-term protection for the second eye

A patient who has had a glaucoma attack in one eye carries a high risk of this also happening in the second eye. Therefore, glaucoma therapy always includes preventive treatment of the healthy eye. 

The aim is to permanently relieve the anatomically narrow angle of the ventricle by means of a prophylactic laser iridotomy or the removal of the lens and thus preserve vision.

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Frequently Asked Questions About Glaucoma Attack (FAQ)

Delaying treatment for a glaucoma attack leads to rapid destruction of the optic nerve and the retina. Since the massively increased intraocular pressure pushes out nerve fibers, this can lead to irreversible visual field failures and complete loss of vision within a few hours. To prevent permanent blindness, the most important measure is to lower the pressure immediately.

The vast majority of acute glaucoma attacks are triggered by narrow-angle glaucoma, in which the angle of the ventricle is suddenly blocked. In rare cases, however, other causes, such as inflammation or bleeding in the anterior chamber, can also lead to a sudden increase in intraocular pressure. Regardless of the exact cause, any sudden, extreme rise in eye pressure is considered an eye emergency and must be treated immediately.

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