Why Does My Eye Hurt?
The honest verdict
This is usually not an allergy
Eye pain is rarely caused by an allergy. Most cases stem from common issues — dry eyes, conjunctivitis (pink eye), a corneal abrasion (scratch), a stye, or a foreign body like an eyelash. True eye allergies (allergic conjunctivitis) cause itching, redness, and watery discharge, but they are more itchy than painful. Pain that is sharp, stabbing, deep, or accompanied by vision changes, light sensitivity, or nausea is not typical of allergies and requires prompt medical evaluation to rule out more serious conditions such as acute glaucoma, iritis, or a corneal ulcer.
This is a general research summary, not a diagnosis. It can't tell you what's causing your symptom — a clinician can.
Check this first
When eye pain is an emergency
Most of the time this can be handled calmly. But a few signs mean you shouldn't wait. Match what you're seeing to the right level of care below.
If any emergency sign below is present, call 911 or go to the ER now.
- Emergency
Sudden, severe eye pain with nausea or vomiting — call 911 (possible acute angle-closure glaucoma, a medical emergency that can cause permanent vision loss).
Call 911 or go to the ER now
- Emergency
Eye pain with sudden vision loss, blurred vision, or seeing halos around lights — go to the ER immediately (possible glaucoma, retinal detachment, or optic neuritis).
Call 911 or go to the ER now
- Emergency
Pain after a chemical splash, penetrating injury, or blow to the eye — seek emergency care (possible corneal or intraocular damage).
Call 911 or go to the ER now
- Urgent
Eye pain with a visible white spot on the cornea, severe light sensitivity, or a feeling of something stuck that won't wash out — see an eye doctor (ophthalmologist) urgently (possible corneal ulcer or infection).
Get seen today — urgent care or same-day visit
- See a doctor
Pain that persists for more than 2-3 days, worsens, or is accompanied by discharge, fever, or eyelid swelling — see a clinician or eye doctor.
Book a routine visit with a clinician
When in doubt, err toward getting seen. These tiers are a general guide, not a substitute for a clinician's judgment about your specific situation.
Key facts
Dry eye syndrome affects an estimated 5-50% of people worldwide, depending on age and diagnostic criteria, making it one of the most common causes of eye discomfort.
Acute angle-closure glaucoma is a medical emergency — it causes sudden, severe eye pain with nausea and blurred vision and can lead to permanent vision loss within hours if untreated.
Allergic conjunctivitis affects up to 40% of the U.S. population, but its hallmark symptom is itching, not pain — pain suggests a different cause.
What's causing it
The same symptom can come from very different places. Here are the usual suspects for Eye — the surface (cornea, conjunctiva), the inner structures (iris, lens, retina), or the surrounding tissues (eyelids, tear ducts, orbit), tagged by mechanism and how common each one is — so you can see where an allergy actually fits.
Dry eye syndrome
Insufficient tear production or poor tear quality causes a gritty, burning, or scratchy sensation, often worsening with screen use, reading, or dry environments. It typically affects both eyes and improves with artificial tears. Chronic dry eye can cause recurrent discomfort and blurred vision that clears with blinking.
Conjunctivitis (pink eye)
Viral or bacterial infection of the conjunctiva (the clear membrane covering the white of the eye) causes redness, discharge, crusting, and a gritty or burning sensation. Viral conjunctivitis often accompanies a cold; bacterial conjunctivitis produces thicker, yellow-green discharge. Both are contagious and usually resolve on their own or with antibiotic drops.
Corneal abrasion or foreign body
A scratch on the cornea (from a fingernail, contact lens, or dust) or a trapped eyelash or debris causes sharp pain, tearing, redness, and sensitivity to light. The pain can be intense and is often worse with blinking. Most minor abrasions heal within 24-48 hours with lubricating drops and avoiding rubbing.
Stye (hordeolum) or chalazion
A stye is a bacterial infection of an eyelash follicle or oil gland, causing a red, painful lump on the eyelid margin. A chalazion is a blocked oil gland that is usually painless but can become tender if inflamed. Warm compresses help drain the blockage; persistent lumps may need medical treatment.
Eye allergies (allergic conjunctivitis)
Seasonal or perennial allergens (pollen, dust mites, pet dander) can cause itching, redness, tearing, and mild burning in both eyes. Unlike other causes of eye pain, allergic conjunctivitis is primarily itchy rather than painful. It often occurs with nasal allergy symptoms like sneezing and a runny nose.
Sinus headache or sinusitis
Inflammation of the sinuses can cause a dull, aching pain behind or around the eyes, often accompanied by nasal congestion, facial pressure, and headache. The pain may worsen when bending forward. Treating the underlying sinus infection or congestion usually relieves the eye discomfort.
Is this an allergy? Usually, no
It's a common assumption, so it's worth being clear about — and pointing you toward what's more likely going on.
Eye pain is usually not an allergy. True eye allergies (allergic conjunctivitis) cause itching, redness, tearing, and mild burning — but the dominant symptom is itching, not pain. If your eye hurts (sharp, stabbing, gritty, or aching pain) rather than itches, an allergy is unlikely. Allergic conjunctivitis typically affects both eyes and occurs alongside other allergy symptoms like sneezing, a runny nose, or nasal congestion. If you have one-sided eye pain, pain with vision changes, or pain that feels deep or sharp, a non-allergic cause (infection, abrasion, glaucoma) is far more likely and needs medical evaluation.
Because an allergy is unlikely to be the driver, the most useful next step is a clinician who can look at the actual cause — not an allergy test.
Relief you can try at home
If your symptom is mild and you have no red-flag signs, these gentle steps often help. They soothe — they don't replace figuring out the cause.
- 1
Rest your eyes and avoid screens
If your eye pain is from dryness or eye strain, take a break from screens, reading, and close work. Follow the 20-20-20 rule: every 20 minutes, look at something 20 feet away for 20 seconds.
- 2
Use artificial tears
Over-the-counter lubricating eye drops (preservative-free if using frequently) can relieve dryness, grittiness, and mild irritation. Avoid drops labeled 'redness relievers' — they can worsen dryness with overuse.
- 3
Apply a warm compress
For a stye, chalazion, or dry eye, a clean cloth soaked in warm water applied to the closed eyelid for 5-10 minutes can help unblock oil glands and soothe discomfort. Repeat 2-4 times daily.
- 4
Remove contact lenses immediately
If you wear contacts and develop eye pain, remove them right away and switch to glasses. Do not reinsert them until the pain and redness have fully resolved. Wearing contacts with an eye infection or abrasion can worsen the condition.
Stop any step that makes things worse. If the symptom isn't easing within a few days, check in with a clinician.
When to see a doctor
See a clinician or eye doctor if eye pain is severe, sudden, or accompanied by vision changes (blurring, double vision, loss of vision), light sensitivity, nausea, or a visible white spot on the cornea. Pain after a chemical splash or injury requires emergency care. If you wear contact lenses and develop eye pain with redness or discharge, see an eye doctor promptly — contact lens-related infections can progress quickly. For mild, self-limited pain that resolves within a day or two, no medical visit is needed.
❓Frequently Asked Questions
Eye allergies typically cause itching, not pain. The classic symptom of allergic conjunctivitis is an intense urge to rub the eyes, along with redness, tearing, and mild burning. If you feel sharp, stabbing, or aching pain — especially in one eye — an allergy is unlikely. Pain with vision changes or light sensitivity needs immediate medical attention.
A stye (hordeolum) is an infected eyelash follicle or oil gland — it is red, swollen, and painful, and often has a small pus-filled head. A chalazion is a blocked oil gland that is usually painless and feels like a firm lump in the eyelid. Both can be treated with warm compresses; persistent or painful lumps should be seen by a clinician.
Go to the ER for sudden, severe eye pain with nausea or vomiting; eye pain with sudden vision loss, blurred vision, or halos around lights; pain after a chemical splash or penetrating injury; or pain with a visible white spot on the cornea. These can signal acute glaucoma, a corneal ulcer, or other emergencies that threaten vision.
Yes — dry eye syndrome can cause a gritty, scratchy, or burning sensation that feels like pain, especially after prolonged screen use or in dry environments. The discomfort is usually in both eyes and improves with artificial tears. If the pain is sharp, one-sided, or accompanied by vision changes, dry eyes are unlikely to be the cause.
Preservative-free artificial tears are safe for mild dryness or irritation. Do not use drops labeled 'redness relievers' (which contain vasoconstrictors) for more than a few days — they can cause rebound redness and worsen dryness. Never use eye drops for pain that is sharp, vision-changing, or accompanied by discharge — see a clinician first.
Medically reviewed by
Dr. Chet TharpeMD
Last reviewed July 2026
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Read moreThe best next step is a real clinician
This symptom is usually not driven by an allergy, so an allergy test won't give you the answer. A primary care doctor or the right specialist can examine what's actually going on and guide you from there.
Curex focuses on at-home allergy testing and immunotherapy, which isn't the right fit for this symptom — and never a substitute for medical care.
This content is for informational purposes only and does not constitute medical advice, diagnosis, or treatment. It cannot tell you what is causing your eye pain or whether it is an allergy. If you have any emergency sign — trouble breathing, fast-spreading swelling, sudden weakness or confusion, or severe pain — call 911 or go to the nearest emergency room. For anything that is new, worsening, or persistent, see a licensed healthcare provider. Curex focuses on at-home allergy testing and immunotherapy, which is not the appropriate care for this symptom and never a substitute for a clinician.