Eye pain has dozens of possible causes, ranging from too much screen time to serious conditions that need urgent care. Most of the time, hurting eyes trace back to something straightforward: dryness, strain, or minor irritation. But because the eye’s surface is packed with nerve endings (closer to the surface than anywhere else in the body), even small problems can produce surprisingly intense pain.
Understanding where your pain is and what it feels like is the fastest way to narrow down what’s going on.
Surface Pain vs. Deep Pain
Eye pain generally falls into two categories. Surface pain feels like stinging, burning, grittiness, or the sensation that something is stuck in your eye. It typically involves the cornea (the clear front layer) or the conjunctiva (the thin membrane covering the white of your eye). Deep pain feels like an ache or pressure behind or inside the eye, and it usually involves internal structures or the tissues surrounding the eyeball.
The cornea is one of the most nerve-rich tissues in your body. Bare nerve endings sit just five cell layers from the surface, which is why even a tiny scratch can cause sharp, disproportionate pain. This dense wiring also means surface problems tend to produce immediate, obvious discomfort, while deeper issues often build more gradually and feel harder to pinpoint.
The Most Common Culprit: Digital Eye Strain
If your eyes ache after hours on a computer or phone, you’re far from alone. A 2024 study of working adults in the UK and Ireland found that 62.6% met clinical criteria for digital eye strain, and nearly 90% reported ocular symptoms like soreness, dryness, or blurred vision. People working from home were the most affected.
When you focus on a screen, you blink about half as often as normal. Less blinking means less moisture spread across the cornea, which leads to dryness, irritation, and that familiar tired-eye ache. The sustained close-focus effort also fatigues the small muscles inside your eye that control your lens.
The standard fix is the 20-20-20 rule: every 20 minutes, look at something 20 feet away for 20 seconds. This gives your focusing muscles a break and prompts you to blink. Positioning your screen slightly below eye level also helps, because your eyelids cover more of the eye’s surface when you gaze slightly downward, reducing evaporation.
Dry Eyes
Dry eye goes beyond screen use. Aging, hormonal changes (especially after menopause), certain medications like antihistamines and antidepressants, and windy or air-conditioned environments all reduce tear quality or quantity. The result is a persistent burning, stinging, or sandy feeling that tends to worsen as the day goes on.
Over-the-counter artificial tears are the first line of relief. If you’re reaching for them more than four times a day, preservative-free formulations are the better choice. Standard drops contain preservatives that can irritate the eye with frequent use, especially if your tear film is already compromised. For chronic dryness that doesn’t improve with drops, prescription options and in-office procedures can help restore tear production.
Corneal Scratches and Infections
A corneal abrasion, or scratch on the eye’s surface, causes sharp pain, tearing, light sensitivity, and the strong feeling that something is in your eye. Common causes include a stray eyelash, a fingernail, contact lens wear, or a bit of dust or debris. Most minor abrasions heal on their own within 24 to 72 hours, though they can be intensely uncomfortable in the meantime.
If the cornea becomes infected rather than just scratched, you’re dealing with keratitis. Symptoms overlap with a simple scratch (pain, light sensitivity, difficulty keeping the eye open) but tend to worsen rather than improve over a day or two. Contact lens wearers are at higher risk, particularly if lenses are worn overnight or cleaned improperly. Keratitis needs prompt treatment because untreated infections can scar the cornea and affect vision permanently.
Sinus Pressure and Headaches
Pain that seems to come from behind or around the eyes often originates somewhere else entirely. The nerve that carries pain signals from your eye (the trigeminal nerve) also supplies your forehead, sinuses, and the lining of your brain. Because of this shared wiring, sinus congestion, tension headaches, and migraines can all produce aching pain that feels like it’s in your eyes even when the eyes themselves are fine.
Sinus-related eye pain typically comes with nasal congestion, facial pressure, and worsening when you bend forward. Migraine-related eye pain is usually one-sided and accompanied by throbbing, light sensitivity, or nausea. If your eye pain always tracks with headaches or congestion, treating the underlying cause resolves the eye symptoms too.
Inflammation Inside the Eye
Uveitis is inflammation of the middle layer of the eye wall. It causes eye redness, pain, light sensitivity, blurred vision, and sometimes dark floating spots. Unlike surface irritation, uveitis pain tends to be a deep, steady ache that doesn’t improve with artificial tears or rest. It can result from infections, autoimmune conditions, or sometimes has no identifiable trigger.
Scleritis, inflammation of the tough white outer layer of the eye, produces a boring, deep pain that can wake you from sleep. It’s less common than uveitis but more strongly associated with autoimmune diseases like rheumatoid arthritis. Both conditions require treatment to prevent vision loss.
Signs That Need Immediate Attention
Most eye pain resolves with rest, drops, or time. But certain combinations of symptoms signal something more urgent. Acute angle-closure glaucoma, for example, causes severe eye pain, blurred vision, halos around lights, nausea or vomiting, and a visibly red eye. It’s caused by a sudden spike in pressure inside the eye and can permanently damage vision within hours if untreated.
Seek emergency care if your eye pain comes with any of the following:
- Sudden vision loss or double vision
- Halos around lights that appeared suddenly
- Nausea or vomiting alongside eye pain
- Severe, sudden headache
- Discharge of blood or pus
- Direct injury to the eye
- Significant swelling in or around the eye
What to Do Right Now
If your pain is mild and you suspect strain or dryness, start with the basics. Step away from screens, apply preservative-free artificial tears, and give your eyes a few hours of rest. A cool, damp cloth over closed eyes can soothe surface irritation. If you wear contact lenses, switch to glasses until the pain resolves completely.
Pain that started after something got in your eye can often be managed by flushing with clean water or saline. Avoid rubbing, which can push debris across the cornea and worsen a scratch. If flushing doesn’t relieve the foreign body sensation within an hour or two, or if your vision is affected, it’s worth getting the eye examined.
For pain that persists beyond two to three days, keeps coming back, or is accompanied by vision changes, redness, or light sensitivity, an eye exam can catch problems that won’t resolve on their own. Many of the more serious causes of eye pain are highly treatable when caught early, but they don’t improve with drops and rest alone.