Medically Reviewed By: Mark Aquino, NP – Urgent Care Nurse Practitioner, author of Physical Assessment for Nurses Simplified. This article is based on real-world urgent care experience and current clinical guidelines.

A headache behind the right eye can feel like pressure, throbbing, aching, burning, or even a sharp stabbing pain deep inside or around the eye. Sometimes it develops gradually after a long day staring at a computer. Other times, it appears with nausea, sensitivity to light, congestion, tearing, or visual symptoms.

Most headaches are not caused by a dangerous medical condition. However, the location of a headache alone cannot tell you whether it is serious. Pain behind one eye can occur with relatively common conditions such as migraine or eye strain, but it can also occur with problems that need urgent treatment, including acute angle-closure glaucoma, orbital infection, and certain neurologic emergencies.

The other symptoms occurring with the headache—and how suddenly the pain started—are often more important than whether the pain is behind the right or left eye.

This guide explains common causes of a headache behind the right eye, symptoms that can help distinguish them, what you can try at home, and the warning signs that mean you should seek medical attention.

Important: This article provides general health information and is not a substitute for an examination or diagnosis by a healthcare professional. New, severe, persistent, or unusual headaches should be medically evaluated.

What Does a Headache Behind the Right Eye Mean?

A headache that feels as though it is coming from behind the right eye does not necessarily mean there is something wrong with the eye itself.

Pain can originate from structures in and around the eye, sinuses, nerves, blood vessels, muscles, or headache pathways in the brain. This is one reason several very different conditions can produce similar pain.

Some of the more common possibilities include:

Migraine
Cluster headache
Eye strain
Sinus-related facial pain
Dry or irritated eyes
Uncorrected vision problems
Other primary headache disorders

Less common but potentially serious causes include:

Acute angle-closure glaucoma
Orbital cellulitis
Optic neuritis
Stroke or another neurologic emergency
Meningitis or encephalitis
Intracranial bleeding

The pattern of accompanying symptoms can help narrow the possibilities.

Also see Headache: When to Worry, Common Causes, and When to Seek Medical Care.

1. Migraine

Migraine is one of the most common explanations for a recurrent headache affecting one side of the head.

Migraine pain is frequently described as throbbing or pulsating and often affects one side, although it can occur on both sides. A migraine attack may last from several hours to several days if untreated.

Symptoms suggesting migraine

A headache behind the right eye may be migraine-related if it occurs with:

Throbbing or pulsating pain
Moderate to severe headache
Nausea
Vomiting
Sensitivity to light
Sensitivity to sound
Pain worsened by activity
Recurrent similar episodes

Some people experience migraine with aura, which can cause temporary visual disturbances, tingling, numbness, or speech symptoms before or during the headache.

However, new neurologic symptoms should not automatically be assumed to be migraine.

For example, new weakness, difficulty speaking, or sudden visual loss needs prompt medical evaluation because stroke and other neurologic disorders can sometimes resemble migraine.

What can trigger migraine?

Triggers vary significantly between people but may include:

Poor sleep
Stress
Dehydration
Missing meals
Alcohol
Hormonal changes
Bright lights
Certain smells
Changes in caffeine intake

Keeping a headache diary can help identify patterns if headaches repeatedly occur.

2. Cluster Headache

A cluster headache deserves particular attention when someone describes extremely severe pain behind one eye.

Cluster headaches are uncommon, but their location is distinctive. They typically produce intense pain in, behind, or around one eye on one side of the head.

Unlike many people experiencing migraine who prefer to lie quietly in a dark room, someone experiencing a cluster headache may become restless and have difficulty sitting still.

Symptoms suggesting cluster headache

The pain may be:

Severe or excruciating
Sharp, burning, or stabbing
Concentrated around or behind one eye
Strictly one-sided during an attack

The affected side may also develop:

Watery eye
Red eye
Runny nose
Stuffy nose
Facial sweating
Eyelid swelling
Drooping eyelid

Cluster headaches tend to occur in patterns or “clusters,” with repeated attacks occurring over weeks or months followed by periods without headaches.

A first episode of severe unilateral headache should still be evaluated rather than self-diagnosed as cluster headache because other serious conditions can produce similar symptoms.

3. Eye Strain and Digital Screen Use

Not every headache behind the eye comes from a primary headache disorder.

Sometimes the problem is much simpler: your eyes have been working hard.

Digital eye strain can occur after prolonged use of:

Computers
Phones
Tablets
Video games
Other digital displays

Symptoms can include eye fatigue, discomfort around the eyes, blurred vision, dry or irritated eyes, neck discomfort, and headache.

Clues that eye strain may be contributing

Your headache may:

Develop after prolonged screen use
Improve after resting your eyes
Occur toward the end of the workday
Be accompanied by tired or dry eyes
Occur with blurry vision
Be associated with neck or shoulder tension

Uncorrected refractive problems can also contribute to eye strain and headache.

If headaches consistently occur while reading or using screens, consider scheduling an eye examination, particularly if you have not had your vision checked recently.

Also read: Rash: When to Worry (Common vs Serious Rashes, ER vs Urgent Care Guide)

4. Sinus Problems

Many people assume pressure behind an eye automatically means a “sinus headache.”

The relationship is more complicated.

The sinuses are air-filled spaces located around the nose, cheeks, and forehead. Inflammation involving these areas can produce facial pressure and discomfort that may be perceived around the eyes.

Sinus-related symptoms may include:

Nasal congestion
Thick nasal drainage
Facial pressure
Reduced sense of smell
Facial tenderness
Fever in some infections
Pressure around the forehead, cheeks, or eyes

However, migraine can also cause facial pressure and nasal symptoms. Therefore, having pain around the eye or forehead does not automatically mean the headache is caused by sinusitis.

If headaches repeatedly occur without significant nasal symptoms, another cause such as migraine may be more likely. Also see Sinus Pain: When to Worry — Sinus Infection vs Pressure vs Serious Causes.

5. Tension-Type Headache

Tension-type headaches usually produce pressure or tightness rather than the classic throbbing associated with migraine.

People often describe the sensation as:

Tight
Aching
Pressing
A band around the head

Muscle tension involving the forehead, scalp, neck, and shoulders can contribute to headache discomfort.

Although tension headaches commonly affect both sides of the head, headache patterns vary, and discomfort may sometimes be perceived more prominently around one eye or temple.

Long hours at a desk, poor posture, inadequate sleep, and stress may contribute.

6. Dry Eye or Other Eye-Surface Problems

Eye irritation can sometimes contribute to discomfort around the eye and headache.

Dry eye may produce:

Burning
Grittiness
Tearing
Redness
Eye fatigue
Sensitivity to light
Blurry vision

People who spend significant amounts of time looking at screens may blink less frequently, which can worsen dryness.

Persistent eye discomfort deserves evaluation, especially if it is predominantly affecting one eye or occurs with visual changes.

7. Acute Angle-Closure Glaucoma: An Eye Emergency

One of the most important dangerous causes of severe headache and eye pain is acute angle-closure glaucoma.

This condition occurs when drainage of fluid inside the eye becomes suddenly obstructed, causing intraocular pressure to rise rapidly. Without prompt treatment, vision can be permanently damaged.

Warning signs of acute angle-closure glaucoma

Seek emergency medical care for severe headache or eye pain accompanied by symptoms such as:

Sudden severe eye pain
Severe headache
Red eye
Blurred vision
Halos or colored rings around lights
Nausea
Vomiting
Sudden decrease in vision

These symptoms can sometimes be mistaken for migraine because both conditions may produce headache, nausea, vomiting, and visual complaints.

The presence of a painful red eye and significant visual changes should raise particular concern for an eye emergency.

Acute angle-closure glaucoma requires immediate treatment.

Do not simply take pain medication and wait overnight for these symptoms to resolve.

8. Orbital Cellulitis

Orbital cellulitis is an infection involving tissues within the eye socket.

It is different from a superficial infection involving only the eyelid. Orbital cellulitis can threaten vision and potentially spread to surrounding structures, including intracranially.

Warning signs include:

Fever
Significant eyelid swelling or redness
Pain around or behind the eye
Pain when moving the eye
Difficulty moving the eye
Decreased vision
Bulging of the eye
Feeling significantly ill

Orbital cellulitis can sometimes develop as an extension of a sinus infection.

This is not something to treat at home.

People with concerning symptoms generally need urgent imaging and intravenous antibiotics, and some complications require surgical treatment.

9. Optic Neuritis

Optic neuritis is inflammation of the optic nerve, which carries visual information from the eye to the brain.

One characteristic presentation is pain behind one eye that becomes worse with eye movement.

Other symptoms can include:

Reduced vision in one eye
Colors appearing less vivid
Loss of part of the visual field
Flashing or flickering lights
Pain with eye movement

Vision loss often develops over hours or days.

Pain behind the eye accompanied by new visual loss should therefore not simply be assumed to be migraine or eye strain.

Prompt medical evaluation is appropriate.

10. Could It Be an “Ocular Migraine”?

The term ocular migraine can be confusing because people use it to describe different conditions.

Migraine with aura can cause temporary visual symptoms such as flashing lights, blind spots, or other visual disturbances. These visual phenomena typically affect the visual field of both eyes, even when they may seem more noticeable on one side.

Retinal migraine is different and is rare. It can cause temporary visual disturbance in one eye.

The important point is this:

New vision loss or a new visual disturbance affecting only one eye should not automatically be labeled an ocular migraine.

Other potentially serious eye or vascular conditions can cause monocular visual symptoms and should be ruled out.

When Should I Worry About a Headache Behind My Right Eye?

The severity of pain alone does not always determine whether a headache is dangerous.

Instead, pay particular attention to how quickly it started and what other symptoms are occurring.

Go to the ER for a headache with:

A sudden explosive or “thunderclap” onset
The worst headache you have ever experienced
New weakness or numbness
Facial drooping
Difficulty speaking
Confusion
Seizure
Loss of consciousness
Severe headache with stiff neck and fever
Severe headache after significant head trauma
New severe vision loss
Severe painful red eye with blurred vision, halos, nausea, or vomiting

Also read: Why Am I So Tired All the Time? Common Causes of Fatigue and When to Worry

Sudden severe headaches and headaches accompanied by neurologic abnormalities can represent serious secondary causes and require emergency evaluation. Also see Headache: When to Worry, Common Causes, and When to Seek Medical Care.

What About a Headache Behind the Eye With Blurry Vision?

Blurry vision changes the situation.

Mild temporary blurring after prolonged screen use may be related to eye strain or dryness.

But sudden or significant visual changes—particularly involving one eye—need more caution.

Seek prompt medical attention if headache or eye pain occurs with:

Sudden loss of vision
New blind spots
Double vision
Severe eye redness
Halos around lights
Significant pain with eye movement
A new visual disturbance affecting only one eye

Migraine can certainly cause visual symptoms, but new visual symptoms should not automatically be attributed to migraine without appropriate evaluation.

What If My Headache Is Only Behind One Eye?

One-sided pain can occur with several headache disorders.

Migraine commonly affects one side.

Cluster headache characteristically causes severe pain around or behind one eye.

Certain eye disorders can also affect only one eye.

Therefore:

Right-sided pain does not necessarily mean something is wrong specifically with the right side of your brain.

The location is simply one piece of the diagnostic puzzle.

Healthcare professionals will also consider:

How suddenly the pain began
Duration
Severity
Previous headache history
Neurologic symptoms
Eye symptoms
Fever
Recent illness
Trauma
Medications
Age
Medical history

What If It Hurts When I Move My Eye?

This symptom deserves attention.

Pain with eye movement may occur with conditions affecting structures around or behind the eye. One important consideration is optic neuritis, particularly when pain is accompanied by decreased vision or changes in color perception.

Orbital cellulitis can also cause painful or restricted eye movement, generally along with other findings such as fever, eyelid swelling, redness, or visual abnormalities.

If moving the eye causes significant pain—especially with vision changes, swelling, fever, or redness—seek prompt medical evaluation.

Can Dehydration Cause a Headache Behind the Eye?

Dehydration can contribute to headache in some people, although the precise location can vary.

Consider whether you have:

Been exercising or working outdoors
Been vomiting or having diarrhea
Had inadequate fluid intake
Consumed significant amounts of alcohol
Been exposed to excessive heat

Rehydration may help a mild headache associated with inadequate fluid intake.

However, do not assume dehydration explains a new severe headache simply because you have not been drinking enough water. Also see Nausea and Vomiting: When to Worry, Dehydration Signs, ER vs Urgent Care.

Can High Blood Pressure Cause Pain Behind the Eye?

Many people check their blood pressure during a headache and become concerned when the number is elevated.

Pain, anxiety, and stress themselves can temporarily increase blood pressure.

A single elevated reading therefore does not necessarily mean high blood pressure caused the headache.

However, very high blood pressure accompanied by concerning symptoms such as chest pain, shortness of breath, neurologic changes, severe headache, confusion, or visual abnormalities requires urgent medical assessment.

What Can I Do at Home for a Mild Headache Behind the Eye?

If the headache is mild, familiar, and there are no red-flag symptoms, simple measures may help.

1. Rest

Try resting in a quiet environment, particularly if light or noise makes the headache worse.

2. Hydrate

Drink water regularly, especially if your fluid intake has been low.

3. Take a screen break

If symptoms followed prolonged computer or phone use, allow your eyes to rest.

4. Eat if you have skipped meals

Missing meals can trigger headaches in some people.

5. Consider an over-the-counter pain reliever

For people who can safely take them, medications such as acetaminophen or an NSAID may help some uncomplicated headaches.

Follow the product label and avoid exceeding recommended doses.

NSAIDs may not be appropriate for everyone, including some people with kidney disease, gastrointestinal bleeding or ulcers, anticoagulant use, certain cardiovascular conditions, or pregnancy.

Acetaminophen also has dosing limitations and requires caution in people with significant liver disease or heavy alcohol use.

Frequent use of acute headache medications can itself contribute to medication-overuse headache, so recurrent headaches should be evaluated rather than repeatedly self-treated.

6. Keep a headache diary

Record:

Time headache began
Location
Duration
Severity
Associated symptoms
Food and fluid intake
Sleep
Caffeine
Medications
Possible triggers

Patterns can become much easier to recognize after several episodes.

Urgent Care, Primary Care, Eye Doctor, or ER?

Determining where to go depends primarily on your symptoms.

Primary care may be appropriate for:

Recurrent headaches that are stable, mild to moderate, and not associated with emergency warning signs.

A primary care clinician can evaluate headache patterns and determine whether further testing or specialist referral is appropriate.

An eye doctor may be appropriate for:

Recurrent eye strain
Vision correction concerns
Persistent eye discomfort
Chronic visual complaints
Headaches consistently associated with reading or focusing

Urgent care may be appropriate for:

A new or worsening headache that needs same-day evaluation but does not have obvious emergency warning signs.

Also read: Leg Swelling: When to Worry (Blood Clot vs Fluid Retention, ER vs Urgent Care Guide)

Urgent care can assess vital signs, perform a neurologic examination, evaluate many common headache causes, and determine whether escalation to an emergency department is necessary.

Go to the ER for:

Thunderclap headache
Severe sudden headache
New neurologic deficits
Confusion or seizure
Severe headache with fever and stiff neck
Significant sudden vision loss
Severe painful red eye with visual changes
Suspected acute angle-closure glaucoma
Significant head injury with concerning symptoms
Severe eye pain with fever, swelling, impaired eye movement, or decreased vision

Also see Chest Pain: When to Worry.

Frequently Asked Questions

Why do I have a headache behind my right eye?

Common possibilities include migraine, cluster headache, eye strain, vision problems, sinus-related discomfort, and other headache disorders. Less commonly, serious eye or neurologic disorders can cause similar pain.

The location alone cannot determine the diagnosis.

Is a headache behind one eye usually a migraine?

Migraine commonly causes one-sided headache and may be felt around or behind the eye. Migraine becomes more likely when the pain is throbbing and occurs with nausea, sensitivity to light, sensitivity to sound, or a history of similar attacks.

But not every one-sided headache is migraine.

How do I know if pain behind my eye is serious?

Seek urgent medical attention when pain occurs with sudden vision loss, severe eye redness, significant eye swelling, fever, neurologic symptoms, confusion, severe vomiting, or a sudden explosive headache.

What causes sharp stabbing pain behind one eye?

Cluster headache can cause extremely severe sharp or stabbing pain behind or around one eye.

Other conditions can produce sharp pain as well, so new or unusually severe symptoms should be evaluated.

Can lack of sleep cause headaches behind the eye?

Poor sleep can contribute to headache and can trigger migraine in susceptible individuals. Sleep disruption can also occur because of the headache itself.

Repeated headaches associated with poor sleep are worth discussing with a healthcare professional.

Can staring at a screen cause a headache behind my eye?

Yes. Digital eye strain can produce eye fatigue, aching around the eyes, blurred vision, dryness, and headache.

Symptoms that consistently occur after screen use and improve with rest make eye strain more plausible.

Is headache behind the right eye different from behind the left eye?

Usually, the side alone does not dramatically change the differential diagnosis.

Migraine, cluster headache, eye problems, and other causes may occur on either side.

The associated symptoms and headache pattern matter more than whether it occurs on the right or left.

Should I worry if I have a headache behind my eye every day?

Daily or increasingly frequent headaches deserve medical evaluation.

Possible explanations range from migraine and other primary headache disorders to medication-overuse headache, vision problems, and secondary causes.

Do not simply increase your use of over-the-counter pain medications without determining why the headaches keep occurring.

The Bottom Line

A headache behind the right eye is often caused by conditions such as migraine, cluster headache, eye strain, or other relatively common headache disorders. The location of the pain by itself does not tell you whether the cause is dangerous.

What matters most is the overall pattern.

A recurrent throbbing headache with nausea and light sensitivity may suggest migraine.

Excruciating attacks around one eye with tearing, nasal congestion, and restlessness may suggest cluster headache.

A headache developing after hours of computer work with tired, dry eyes may point toward digital eye strain.

But severe eye pain with redness, blurred vision, halos, nausea, or vomiting can indicate acute angle-closure glaucoma, which is an emergency. Pain with eye movement and visual loss can indicate an optic nerve problem. Fever, eyelid swelling, painful eye movement, or a bulging eye can indicate orbital cellulitis. And a sudden thunderclap headache or headache accompanied by weakness, numbness, speech difficulty, confusion, or seizure requires emergency evaluation.

When a headache is new, severe, worsening, different from your usual headaches, or accompanied by concerning eye or neurologic symptoms, getting evaluated is safer than trying to diagnose the cause based solely on where it hurts.

References

About the author: Mark Aquino MSN, FNP-C. Mark has a Masters of Science in Nursing from West Coast University and is a board certified family nurse practitioner with over 8 years of real world experience in healthcare and currently practicing in urgent care diagnosing and prescribing treatments in California, USA. He is author of the book Physical Assessment for Nurses Simplified.

Headache Behind the Right Eye: Common Causes, Warning Signs, and When to Worry