A patient presents with visual blurring and daily headaches. What is the most likely diagnosis?

The presentation of visual blurring and daily headaches strongly suggests pseudotumor cerebri, also known as idiopathic intracranial hypertension. This condition is characterized by increased intracranial pressure without a detectable cause on imaging. It typically occurs in overweight women of childbearing age, but can potentially affect others as well. Patients often experience headaches, which may be described as throbbing or relentless, and visual disturbances such as blurred vision or transient visual obscurations.

Pseudotumor cerebri results from an imbalance between cerebrospinal fluid production and absorption, leading to increased pressure. The associated symptoms, especially the combination of headaches and visual changes, are classic for this condition, making it a strong contender as the most likely diagnosis in this scenario.

In contrast, while migraines can present with headaches and occasionally visual changes (like aura), they generally don't cause persistent visual blurring as a hallmark feature, nor do they typically lead to increased intracranial pressure. Tumors may also cause headaches and visual changes, but they usually present with other neurological deficits and would likely be identified through imaging studies. Glaucoma primarily involves increased intraocular pressure with a characteristic threat to peripheral vision, but it doesn't typically present with daily headaches unless there