Glaucoma, often referred to as the “silent thief of sight,” is a group of eye conditions that damage the optic nerve and can lead to vision loss or blindness. Among the different types of glaucoma, the two most common are open-angle glaucoma and angle-closure glaucoma. In this comprehensive guide, we’ll explore the differences between these two types of glaucoma, their causes, symptoms, and treatment options.

Understanding Glaucoma

Glaucoma is a progressive eye condition characterized by increased intraocular pressure (IOP), which can damage the optic nerve. The optic nerve is responsible for transmitting visual information from the eye to the brain, and any damage to it can lead to vision loss. While there are several subtypes of glaucoma, the two main categories are open-angle and angle-closure glaucoma.

Open-Angle Glaucoma

Open-angle glaucoma, also known as primary open-angle glaucoma (POAG), is the most common type of glaucoma, accounting for around 90% of all cases. It is often referred to as “wide-angle” glaucoma because the drainage angle of the eye appears normal and open. Despite this open angle, the drainage system of the eye, called the trabecular meshwork, becomes less efficient over time.




Angle-Closure Glaucoma

Angle-closure glaucoma, also known as closed-angle glaucoma, is less common but considered a medical emergency. In this type of glaucoma, the drainage angle between the iris and the cornea is closed or blocked, leading to a rapid increase in intraocular pressure.




Key Differences: Open-Angle vs. Angle-Closure Glaucoma

  1. Drainage Angle:

Conclusion: Know the Type, Seek Early Detection

Both open-angle and angle-closure glaucoma are serious eye conditions that can lead to vision loss if left untreated. The key to managing glaucoma effectively is early detection through regular eye exams, as both types may be asymptomatic in their early stages. Understanding the differences between these glaucoma types can help individuals and healthcare professionals work together to preserve vision and provide timely treatment when needed.

It’s crucial to remember that this information is for educational purposes and should not replace professional medical advice. If you suspect you have glaucoma or have risk factors for the condition, consult with an ophthalmologist for a comprehensive eye evaluation and personalized guidance on managing your eye health.

At Vision Plus Eye Centre, we’re committed to raising awareness about glaucoma. This sight-threatening condition comes in two primary forms: open-angle and angle-closure. Understanding the differences is crucial for early detection and treatment. Regular eye check-ups at our center can help safeguard your vision.

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