Which symptom is associated with acute closed angle glaucoma?

Acute closed-angle glaucoma is characterized by a sudden increase in intraocular pressure, leading to specific visual symptoms. The symptom of sudden pain and halos around lights is central to this condition. Patients often experience intense ocular pain, which can be accompanied by nausea and vomiting. The halos around lights result from the cornea becoming edematous due to the increased pressure which distorts the light entering the eye.

In contrast to the other symptoms listed, which are typically associated with different ocular or systemic conditions, the sudden onset and combination of severe eye pain and visual disturbances, such as halos, are hallmark signs of acute closed-angle glaucoma. This distinguishing set of symptoms helps differentiate it from other eye-related issues, such as allergies or chronic conditions leading to gradual vision loss. Understanding these symptoms is vital for timely intervention, as acute closed-angle glaucoma can lead to permanent vision loss if not treated promptly.