Closed-angle glaucoma

Definition

Closed-angle glaucoma is a type of glaucoma where the drainage angle between the iris and cornea becomes blocked, leading to increased intraocular pressure. This condition can cause sudden vision loss and requires immediate medical attention.

5 Must Know Facts For Your Next Test

1. Closed-angle glaucoma is also known as acute angle-closure glaucoma.
2. Symptoms include severe eye pain, nausea, vomiting, blurred vision, and seeing halos around lights.
3. It is considered a medical emergency that can lead to permanent vision loss if not treated promptly.
4. Treatment often involves medications to lower intraocular pressure followed by laser or surgical procedures to open the drainage angle.
5. Risk factors include age (over 60), family history of glaucoma, hyperopia (farsightedness), and Asian or Inuit ethnicity.

Review Questions

• What are the primary symptoms of closed-angle glaucoma?
• Why is closed-angle glaucoma considered a medical emergency?
• Name two treatment methods used for managing closed-angle glaucoma.

Related terms

Intraocular Pressure (IOP): The fluid pressure inside the eye.

Open-angle Glaucoma: A type of chronic glaucoma where the drainage angle remains open but has slow clogging over time.

Laser Iridotomy: A laser procedure used to create a small hole in the iris to improve fluid drainage in cases of closed-angle glaucoma.