H40.219

Clinical Causes: Anatomical features such as a narrow anterior chamber angle that predispose to blockage Sudden pupillary block, where the iris bulges forward and blocks fluid flow Certain medications that cause pupil dilation Age-related changes that affect eye structures Pre-existing eye conditions or injury that alter normal eye anatomy

Key Symptoms: Sudden onset of severe eye pain or discomfort Visual disturbances, such as seeing halos around lights or sudden blurred vision Redness in the affected eye Headache that may radiate toward the forehead or temple Nausea and vomiting in some cases Dilated pupil that may appear non-reactive to light Reduced or blurred vision

Diagnosis Path: Diagnosis typically involves a comprehensive eye examination, including measuring intraocular pressure with tonometry, assessing the angle of the anterior chamber through gonioscopy, and evaluating the optic nerve and retinal health. The clinician may also perform slit-lamp examination to observe the anterior segment of the eye. Identifying signs of acute angle-closure glaucoma promptly is crucial for preventing permanent vision damage.

Treatment Protocols: Immediate medical intervention is essential once acute angle-closure glaucoma is suspected. Treatment options include: - **Rapid reduction of intraocular pressure** through medications such as topical eye drops, oral or intravenous hyperosmotic agents. - **Laser or surgical procedures** like laser iridotomy may be performed to create a new drainage pathway in the eye and prevent future attacks. - **Long-term management** involves monitoring eye pressure and addressing any underlying anatomical issues to reduce the risk of recurrent episodes. It's important to seek emergency medical care if experiencing symptoms suggestive of acute angle-closure glaucoma to preserve eyesight.