What is an important characteristic of acute closed-angle glaucoma?

Acute closed-angle glaucoma is characterized by a sudden increase in intraocular pressure, which occurs when the drainage angle of the eye becomes blocked. This blockage leads to a buildup of fluid within the eye, causing the pressure to rise rapidly. The increase in intraocular pressure is a critical factor in the pathophysiology of this condition and can cause significant damage to the optic nerve if not treated promptly. Acute closed-angle glaucoma typically presents with symptoms such as severe eye pain, headache, nausea, vomiting, and visual disturbances, distinguishing it from chronic or open-angle glaucoma, which often develops gradually and may be asymptomatic in its early stages.

Understanding the dynamics of intraocular pressure in this condition is essential for proper diagnosis and timely intervention to prevent permanent vision loss. The emphasis on treating the underlying pressure increase, often through medications or surgical intervention, highlights the urgency of managing acute closed-angle glaucoma effectively.