A sore eyeball usually comes from something minor like dry eyes, eye strain, or a small irritation on the surface of the eye. These causes are common, temporary, and manageable at home. Less often, soreness signals something deeper: inflammation inside the eye, a spike in eye pressure, or a problem with the optic nerve. The type of pain, where exactly you feel it, and what makes it worse all point toward different causes.
Digital Eye Strain
If your eyes feel sore after hours on a computer, phone, or tablet, digital eye strain is the most likely explanation. Your eyes are constantly refocusing to read pixelated text on a screen, and the low contrast between letters and background makes them work harder than they would reading print on paper. On top of that, you blink about a third less often while looking at a screen, which dries out the surface of your eyes. The combination produces an aching, tired feeling behind the eyeball.
The fix is straightforward: follow 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 reminds you to blink. Adjusting screen brightness to match the lighting around you and keeping your monitor at arm’s length also helps. Symptoms typically resolve once you step away from the screen.
Dry Eyes
Dry eye happens when your eyes don’t produce enough tears or the tears evaporate too quickly. It feels like something gritty is stuck in your eye, and your eyes may look red, sting, or water excessively (your eyes overcompensate for the dryness by flooding with low-quality tears). Wind, air conditioning, contact lenses, and certain medications like antihistamines can all trigger or worsen it.
Preservative-free artificial tears are the first thing to try. They add moisture back to the surface without the chemicals found in some regular eye drops. Avoid “redness relief” drops for this purpose. Those work by shrinking blood vessels, which temporarily hides redness but doesn’t address the underlying dryness. Over time, they can make things worse.
Pink Eye and Surface Infections
Conjunctivitis, commonly called pink eye, causes redness, swelling, watery discharge, and sometimes crusty eyelashes. Viral pink eye is the most common type and clears on its own in one to two weeks. Bacterial pink eye tends to produce thicker, yellow-green discharge and may need antibiotic drops. Both are highly contagious, spreading easily from hand to eye or through shared towels.
Keratitis is a step more serious. It’s inflammation of the cornea, the clear dome covering the front of your eye. Contact lens wearers are at higher risk, especially if lenses are worn overnight or cleaned improperly. Keratitis can feel like severe dryness or foreign-body irritation and sometimes causes light sensitivity. Left untreated, it can lead to a corneal ulcer, an open sore on the cornea that requires prompt medical treatment to prevent scarring and vision loss.
Sinus Pressure Mimicking Eye Pain
Sometimes the problem isn’t your eye at all. Sinus infections cause pressure and inflammation in the cavities around your eyes, and that pain is often felt directly behind or around the eyeball. If your “eye soreness” comes with nasal congestion, facial pressure, a headache that worsens when you lean forward, or ear pain, sinusitis is a strong possibility. Treating the sinus infection, whether with decongestants or antibiotics if it’s bacterial, usually resolves the eye discomfort.
Scleritis and Deeper Inflammation
The white of your eye has layers. Inflammation of the outermost layer, called episcleritis, causes localized redness but typically no real pain. It looks alarming but tends to resolve on its own.
Scleritis is a different story. It involves deeper inflammation and produces a severe, boring ache that can wake you up at night. The affected area may take on a blue-violet hue, and light sensitivity is common. Scleritis is often linked to autoimmune conditions like rheumatoid arthritis, and it requires treatment to prevent damage to the eye’s structure.
Pain That Worsens With Eye Movement
If your eyeball hurts specifically when you look side to side or up and down, optic neuritis is one possible cause. This is inflammation of the optic nerve, the cable that carries visual signals from your eye to your brain. Most people describe it as a dull ache behind the eye that flares with movement. Some notice flashing or flickering lights when they shift their gaze. Vision in the affected eye may become blurry or dim, particularly for colors.
Optic neuritis is sometimes the first sign of multiple sclerosis, though it can also occur on its own after a viral infection. It often improves without treatment over several weeks, but it needs to be evaluated to rule out underlying conditions.
Acute Angle-Closure Glaucoma
This is the most urgent cause of eyeball pain. Inside your eye, fluid constantly circulates and drains through a small channel. If that drainage angle suddenly closes off completely, pressure inside the eye spikes rapidly. The result is severe pain in the eye or forehead, blurred vision, halos around lights, nausea, and vomiting. The eye often turns red. This is a medical emergency because sustained high pressure can permanently damage the optic nerve within hours.
Acute angle-closure glaucoma is rare, but the symptoms are unmistakable. If you experience sudden, intense eye pain with vision changes, nausea, or halos, go to an emergency room immediately.
When Soreness Needs Urgent Attention
Most eyeball soreness improves with rest, artificial tears, or time. But certain combinations of symptoms point to problems that can threaten your vision if they’re not treated quickly:
- Severe pain with headache, fever, or light sensitivity
- Sudden vision changes, including blurriness, dimming, or loss of part of your visual field
- Nausea or vomiting alongside eye pain
- Halos around lights
- Swelling in or around the eye
- Blood or pus coming from the eye
- Difficulty moving the eye or keeping it open
- Chemical splash or foreign object that won’t flush out
Any of these warrant same-day or emergency evaluation. For milder soreness that persists beyond a few days or keeps coming back, an eye exam can identify causes like chronic dry eye or early glaucoma that benefit from treatment before they progress.
What to Do at Home
For garden-variety soreness, a few simple steps usually help. A cool, damp washcloth over closed eyes can ease surface irritation. Preservative-free artificial tears rehydrate dry eyes safely. Taking screen breaks throughout the day prevents the strain that causes most everyday eye soreness. If you wear contacts, switching to glasses for a day or two gives the cornea a chance to recover.
Be cautious with over-the-counter drops that promise to “get the red out.” These vasoconstrictor drops temporarily reduce redness by shrinking blood vessels, but they can mask symptoms of a condition that needs real treatment. The redness often rebounds and comes back worse once the drops wear off. If your eyes are persistently red and sore, it’s worth getting them checked rather than covering up the symptom.