If your eye hurts, the first step is figuring out whether it’s something you can manage at home or something that needs prompt medical attention. Most eye pain comes from minor, treatable causes like dryness, strain, or a small scratch. But certain types of eye pain signal conditions that can permanently damage your vision within hours, so knowing the difference matters.
Signs You Need Emergency Care
Some eye pain needs immediate attention, not a wait-and-see approach. Get to an emergency room or eye doctor right away if you notice any of the following: sudden partial or total vision loss, a visible wound on or near the eye, blood or clear fluid leaking from the eye, an object embedded in the eye, or any chemical contact (including fumes from cleaning products or garden chemicals).
One condition that catches people off guard is a sudden pressure spike inside the eye, sometimes called acute angle-closure glaucoma. It causes intense pain in one eye, blurred vision, rainbow-colored halos around lights, and often nausea or vomiting. It can feel more like a severe headache than an eye problem, which leads some people to delay care. If you have that combination of symptoms, treating it quickly is critical to preserving your sight.
Identify the Type of Pain
The character of your pain tells you a lot about what’s going on. A gritty, stinging sensation on the surface of your eye usually points to something external: dryness, a loose eyelash, dust, or a scratch. A deeper, aching pain behind or around the eye can suggest internal inflammation, a sinus problem, or pressure changes inside the eye. Itching, especially if both eyes are affected, is the hallmark of allergies or a viral or bacterial infection like pink eye.
Pay attention to whether your pain gets worse in bright light. Extreme light sensitivity, where you want to keep your eyes shut or sit in a dark room, is a red flag for a corneal scratch or internal inflammation called uveitis. Uveitis can also cause floaters (small dark spots drifting across your vision), blurry vision, and redness. It requires treatment to prevent vision loss.
Scratches on the Eye Surface
Corneal abrasions are one of the most common causes of sudden, sharp eye pain. You can get one without realizing it. A fingernail, a tree branch, even rubbing your eye too hard can do it. The pain often doesn’t start until hours after the injury, which makes the cause hard to trace.
A scratch on the cornea produces some of the most intense discomfort you can experience from the eye. The pain stays even when your eyes are closed. You’ll have heavy tearing that runs constantly down your cheek, and possibly a runny nose on the same side. Bright light becomes almost unbearable. If this sounds like what you’re experiencing, you likely need to see an eye doctor. Most abrasions heal within a few days with treatment, but leaving one untreated raises the risk of infection.
Eye Infections vs. Allergies
Infections like pink eye (conjunctivitis) typically start in one eye and spread to the other within a few days, though the second eye is usually less irritated. The main sensation is itchiness, not sharp pain. You may notice discharge or mucus that crusts overnight, and some light sensitivity, though not nearly as severe as with a scratch. Bacterial infections produce thicker, yellow-green discharge, while viral infections tend to cause watery eyes.
Allergic reactions look similar but affect both eyes at the same time and come with other allergy symptoms like sneezing or a stuffy nose. Antihistamine eye drops can help with allergy-related itching specifically. Lubricating drops (artificial tears) help with general dryness and mild irritation. But redness-relief drops deserve caution. They temporarily shrink blood vessels to reduce redness, but the redness can rebound and come back worse. They also mask symptoms that might point to something more serious.
What to Do About a Foreign Object
If something small like dust, sand, or an eyelash gets into your eye, try blinking several times to let your tears wash it out. If that doesn’t work, rinse your eye gently with clean water or saline solution. Tilt your head so the affected eye is facing down, pull your lower lid out slightly, and let the water flow across the surface of your eye. A minute or so of rinsing is usually enough to flush out loose debris.
Chemical splashes are a different story. If any chemical gets into your eye, start rinsing immediately with water and continue for at least 15 to 30 minutes. Don’t wait, don’t try to figure out what the chemical was first. Rinse first, then get to an emergency room.
The critical rules for any foreign object: do not rub your eye, and do not try to remove anything that appears embedded or is sticking out from the eye. Rubbing can push an object deeper or scratch the cornea. An embedded object needs professional removal.
Screen-Related Eye Pain
If your eye pain is more of a dull ache or tired, heavy feeling that worsens through the day, digital eye strain is a likely cause. It’s one of the most common reasons for recurring eye discomfort, especially if you spend long hours at a computer or phone.
The most effective fix is the 20-20-20 rule: every 20 minutes, look at something about 20 feet away for 20 seconds. This gives your focusing muscles a break. Beyond that, keep your screen roughly 20 inches from your eyes, reduce glare by adjusting your lighting, and make a conscious effort to blink more often. People blink significantly less when staring at screens, which dries out the eyes. Limiting screen time to four hours or less per day helps, though that’s not realistic for everyone. Artificial tears can supplement your natural moisture if dryness is part of the problem.
Contact Lens Pain
If you wear contacts and your eye starts hurting, take the lens out immediately. Don’t push through the discomfort. A torn or dirty lens can scratch your cornea, and wearing contacts with an underlying infection dramatically raises the risk of a serious complication called keratitis, which can scar your cornea.
After removing the lens, give your eye about an hour. If the pain, redness, or blurriness doesn’t improve in that time, or if you notice discharge, increasing light sensitivity, or the feeling that something is still stuck in your eye, treat it as urgent and see an eye care provider that day. Don’t put a new lens back in until the issue is fully resolved.
When the Pain Isn’t Coming From the Eye Itself
Sometimes what feels like eye pain actually originates nearby. Sinus infections are a common culprit. The sinuses sit directly behind and below the eye sockets, and when they’re inflamed, the pressure and aching can feel like it’s in or behind your eye. This type of pain usually worsens when you bend forward and comes with nasal congestion, facial pressure, or a headache.
In rare cases, a sinus infection can spread to the tissue surrounding the eye, a condition called orbital cellulitis. The distinguishing signs are pain when you move your eye in different directions, swelling that pushes the eye forward, and double vision. This is a serious infection that needs immediate treatment.
Tension headaches and migraines can also produce pain around the eye. If your eye pain follows a predictable pattern tied to stress, poor sleep, or known migraine triggers, and your vision and the eye itself look normal, the source may be neurological rather than ocular.
Choosing the Right Eye Drops
The eye drop aisle can be overwhelming, and picking the wrong type can make things worse. Here’s a simple breakdown:
- Artificial tears (lubricating drops): Safe for general dryness, mild irritation, and screen-related strain. These reduce friction on the eye surface and are the most universally useful option.
- Antihistamine drops: Designed for allergy symptoms, specifically itching. They won’t help with pain from a scratch or infection.
- Redness-relief drops: These constrict blood vessels to make your eye look whiter temporarily. They don’t treat the underlying problem, and overuse can cause rebound redness. Eye care providers generally recommend avoiding these without professional guidance.
Eye pain from glaucoma and eye pain from dryness can feel surprisingly similar, but the drops that help one condition can worsen the other. If your pain doesn’t improve with basic lubricating drops within a day or two, or if it’s getting worse, that’s your signal to get a professional evaluation rather than experimenting with different products.