Final answer:
Acute angle-closure glaucoma is a condition that presents with severe pain and blurry vision in one eye. It is caused by a sudden increase in eye pressure due to the narrowing or closure of the drainage angle in the eye. The symptoms include severe eye pain, blurred vision, headache, nausea and seeing halos around lights.
Step-by-step explanation:
The condition that presents with severe pain and blurry vision in one eye, brought on by spending a long period of time in a dark room or taking an anticholinergic medication, is known as acute angle-closure glaucoma. Acute angle-closure glaucoma occurs when there is a sudden increase in eye pressure due to the narrowing or closure of the drainage angle in the eye.
This can be triggered by factors such as low lighting conditions or the use of certain medications. Symptoms of acute angle-closure glaucoma include severe eye pain, blurred vision, headache, nausea and seeing halos around lights.