Headaches behind the eyes are most often caused by migraines, eyestrain from screens, or tension headaches. Less commonly, they stem from sinus infections, cluster headaches, or eye conditions like acute glaucoma. The pain feels like it’s originating in or around the eye socket, but in most cases the source is actually nerve signaling from elsewhere in the head.
Understanding which type you’re dealing with helps you figure out what to do about it. The location alone isn’t enough to identify the cause, but the pattern, timing, and accompanying symptoms usually are.
How Pain Ends Up Behind Your Eyes
The reason so many different conditions produce pain in the same spot comes down to a single nerve: the trigeminal nerve. This is the main sensory nerve of the face, and its first branch runs directly through the eye socket area. Pain signals from the blood vessels and membranes surrounding your brain travel along this branch, and your brain interprets them as coming from behind or around the eye. Researchers call this “referred pain,” where intracranial and extracranial nerve fibers converge on the same relay point in the brainstem, making it difficult for your brain to pinpoint where the pain actually originates.
This is why migraines, cluster headaches, and even sinus problems can all produce that deep, pressing sensation behind one or both eyes, despite having completely different underlying causes.
Migraines
Migraines are the most common serious cause of pain behind the eyes. The pain is typically throbbing, moderate to severe, and often affects one side. It tends to worsen with physical activity and lasts anywhere from 4 to 72 hours. You’ll usually notice at least one other symptom: nausea, sensitivity to light, or sensitivity to sound.
Some people experience an aura before the headache starts, which can include visual disturbances like flickering lights, blind spots, or zigzag lines. The retro-orbital pain in migraines is driven by inflammation of the blood vessels and membranes around the brain, with signals traveling through that first branch of the trigeminal nerve. Inflammatory molecules, particularly a protein called CGRP, play a central role in amplifying the pain.
Digital Eyestrain
If your headaches tend to show up during or after long stretches of screen time, digital eyestrain is a likely culprit. Three separate mechanisms contribute to the problem. First, your eye muscles fatigue from sustained close-focus work. When you stare at a screen, your focusing system is under constant demand, and over hours this creates a measurable lag in your ability to adjust focus. Second, poor posture at a desk causes muscle tension in the neck and shoulders that radiates into the head. Improper screen placement, wrong chair height, or sitting too close all contribute.
Third, and perhaps most significantly, your blink rate drops dramatically during screen use. Studies have recorded blink rates falling from around 18 blinks per minute to as few as 3 or 4. Even when you do blink, the blinks are often incomplete, meaning the upper eyelid doesn’t fully cover the cornea. This leads to a dry, irritated eye surface that compounds the sensation of pressure and aching behind the eyes. The horizontal gaze angle used for most computer screens also exposes more of the cornea to air, accelerating tear evaporation.
Cluster Headaches
Cluster headaches are far less common than migraines, but they produce some of the most intense pain known in medicine. The pain is strictly one-sided, centered in or around the eye socket, and described as piercing or burning. Individual attacks last between 15 minutes and 3 hours, and they occur in clusters: you might get one to eight attacks per day for weeks or months, followed by a remission period with no headaches at all.
What distinguishes cluster headaches from other causes is the set of accompanying symptoms on the same side as the pain. These include a red or watery eye, a drooping eyelid, a constricted pupil, nasal congestion or a runny nostril, and facial sweating. People experiencing a cluster attack typically feel restless or agitated and can’t lie still, which is the opposite of migraine behavior (where most people want to be motionless in a dark room). Cluster headaches often strike at the same time each day, frequently waking people from sleep.
Sinus Infections
Sinus headaches are frequently blamed for pain behind the eyes, though research suggests many self-diagnosed sinus headaches are actually migraines. True sinus-related pain behind the eyes most often involves the sphenoid sinus, a deep sinus cavity located behind the nose near the center of the skull. Sphenoid sinus infections produce headaches of varying intensity and location, including retro-orbital pain, vertex (top of head) pain, and occipital (back of head) pain. The presentation is often vague and doesn’t respond well to standard painkillers.
A key clue is that sphenoid sinus headaches tend to worsen with head movements. They may also be accompanied by a post-nasal drip, a dull feeling of pressure in the middle of the head, and sometimes ear pain. If you have a headache behind your eyes along with thick nasal discharge, fever, and facial pressure that worsens when you lean forward, a sinus infection is worth investigating.
Tension Headaches
Tension headaches are the most common headache type overall, producing a band-like pressure around the head that often concentrates behind the eyes or across the forehead. The pain is usually mild to moderate, affects both sides, and doesn’t throb. Unlike migraines, tension headaches rarely cause nausea or sensitivity to light. They’re driven by sustained contraction of the muscles in the scalp, forehead, and neck, often triggered by stress, poor sleep, dehydration, or prolonged awkward posture.
Acute Angle-Closure Glaucoma
This is the one eye condition that produces genuine behind-the-eye pain and requires emergency treatment. Acute angle-closure glaucoma occurs when fluid drainage in the eye is suddenly blocked, causing a rapid spike in eye pressure. Symptoms include a severe headache, intense eye pain, blurred vision, halos or colored rings around lights, eye redness, and nausea or vomiting. The combination of a bad headache with visual changes and eye redness is the hallmark. This needs immediate treatment in an emergency room or by an ophthalmologist to prevent permanent vision loss.
Warning Signs That Need Urgent Attention
Most headaches behind the eyes are benign, but certain patterns signal something more serious. The three most important red flags are sudden onset of double vision, a headache accompanied by vision loss that isn’t explained by an existing eye condition, and visual loss that persists after the headache resolves.
Other symptoms that warrant urgent evaluation include vomiting or seizures alongside the headache (which can indicate increased pressure inside the skull), fever with headache (suggesting infection in the sinuses, ears, or surrounding structures), a severely drooping eyelid with the eye deviating downward and outward (a possible sign of a brain aneurysm), and a bulging eye that’s painful or associated with vision changes.
Relief Strategies That Work
For eyestrain headaches, the most effective intervention is simply changing your screen habits. Follow the 20-20-20 pattern: every 20 minutes, look at something 20 feet away for 20 seconds. Adjust your monitor so it sits at arm’s length and slightly below eye level. Make a conscious effort to blink fully and frequently. If your workspace ergonomics are poor, fixing your chair height and screen position can eliminate the postural component entirely.
For tension headaches, over-the-counter pain relievers like ibuprofen or acetaminophen are effective for occasional use. Mind-body approaches including meditation, deep breathing, and yoga have solid evidence for reducing headache frequency when practiced regularly. Physical therapy can help if chronic neck and shoulder tension is driving the headaches.
For migraines, treatment splits into two categories. Acute treatment aims to stop an attack in progress, while preventive treatment reduces how often they occur. Prescription options for prevention include medications that calm overactive nerve signaling or stabilize blood vessels. For acute attacks, a class of medications specifically designed for migraines can abort the pain if taken early enough. Natural supplements with some evidence include butterbur, feverfew, magnesium, and coenzyme Q10, though results vary by person. Acupuncture has also shown benefit for migraine prevention in clinical studies.
Cluster headaches respond poorly to standard painkillers. High-flow oxygen therapy is one of the most effective acute treatments, and preventive medications taken during a cluster period can reduce attack frequency significantly. If you suspect cluster headaches based on the pattern described above, a neurologist or headache specialist is the right starting point.