Management of Generalized Headache and Bilateral Blurred Vision

Immediate Priority: Rule Out Vision-Threatening and Life-Threatening Causes

The American Academy of Ophthalmology recommends urgent ophthalmologic evaluation and measurement of intraocular pressure (IOP) to exclude acute angle-closure glaucoma, which can present with generalized headache, bilateral blurred vision, halos around lights, and elevated IOP (40-50 mmHg), and requires immediate treatment to prevent permanent vision loss 1
The American Academy of Ophthalmology suggests that acute angle-closure presents with severely elevated IOP (>40 mmHg), mid-dilated poorly reactive pupils, corneal edema, and conjunctival hyperemia, and requires immediate measurement of IOP 1
The American Academy of Neurology recommends assessing for papilledema, as bilateral optic disc swelling suggests idiopathic intracranial hypertension (IIH), which presents with headache, bilateral blurred vision, transient visual obscurations, and pulsatile tinnitus 2

The American Academy of Ophthalmology recommends diagnosing acute angle-closure glaucoma if IOP >21 mmHg with narrow angles on gonioscopy, and initiating immediate IOP-lowering therapy (topical beta-blockers, alpha-agonists, carbonic anhydrase inhibitors, hyperosmotic agents) 1
The American Academy of Ophthalmology suggests arranging urgent laser peripheral iridotomy within 24-48 hours for acute angle-closure glaucoma, and treating the fellow eye prophylactically as there is an 88-89% risk of acute closure 1
The American Academy of Neurology recommends performing lumbar puncture to measure opening pressure (>25 cm H₂O confirms IIH) if papilledema is present with normal neuroimaging, and initiating acetazolamide for CSF pressure reduction 2

The American Headache Society recommends using NSAIDs as initial therapy for migraine, such as naproxen sodium 500-825 mg or ibuprofen 400-800 mg at headache onset while pain is still mild 3
The American Headache Society suggests adding metoclopramide 10 mg 20-30 minutes before NSAID for synergistic analgesia and to address nausea, and escalating to triptan if NSAIDs fail 3
The American Headache Society recommends restricting all acute migraine medications to a maximum of 2 days per week to prevent medication-overuse headache, which paradoxically increases headache frequency and can lead to daily headaches 3

The American Academy of Ophthalmology warns that delaying ophthalmologic evaluation can cause permanent vision loss within hours if acute angle-closure is left untreated, with 18% of eyes becoming blind following acute angle-closure events 1
The American Academy of Neurology cautions that missing IIH in young obese women can lead to progressive visual field loss, as papilledema may be subtle and failure to perform funduscopy delays diagnosis 2