Dry eyes are very common, especially as we get older. If your eyes often feel scratchy, burn, sting, or feel like there is sand in them, you are not alone. Many people deal with dry eyes every day, and for most, it is more annoying than dangerous. The good news is that there are many simple things you can do to feel better.
Dry eyes happen when your eyes do not make enough tears or when tears dry up too quickly. Symptoms include burning, itching, blurry vision, and watery eyes. Dry eyes are common with aging, screen use, dry air, and certain medications. Simple treatments like artificial tears, blinking more often, and improving indoor humidity can help.
What Does It Feel Like to Have Dry Eyes?
Dry eyes can feel different for different people. Some people say it feels like grit or sand is stuck in their eyes. Others feel burning, stinging, or itching. Your eyes may feel tired or sore, especially later in the day. Bright light may bother you, and your vision may get blurry from time to time.
Oddly enough, some people with dry eyes notice that their eyes water a lot. This happens because the eye is irritated and sends out an emergency signal to make more tears, but those tears are often poor quality and do not fix the dryness.
If you wear contact lenses, dry eyes can make them very uncomfortable or impossible to wear.
Why Moisture Matters for Your Eyes
Your eyes need moisture to stay healthy and comfortable. Tears are not just water. They are made of three layers: oil, water, and mucus. These layers work together to keep your eyes smooth, protect against infection, and wash away dust and debris.
Every time you blink, tears spread across the surface of your eye. Then the extra tears drain into small openings near your nose. If you do not make enough tears, or if the tears are poor quality, your eyes can dry out and become irritated.
What Is Dry Eye Syndrome?
Dry eye syndrome, also called keratoconjunctivitis sicca, happens when your eyes cannot keep enough moisture on their surface. This can be a short-term problem or a long-lasting condition. Some people have dry eyes only once in a while, while others deal with it every day.
There are two main problems that cause dry eyes:
- Not making enough tears
- Tears drying up too quickly
Many people have a mix of both.
Common Causes of Dry Eyes
Aging
As you get older, your tear glands do not work as well. This means you make fewer tears. The skin around your eyes can also loosen with age, which lets moisture escape more easily. Dry eyes are very common after age 50.
Medical Conditions
Certain illnesses can affect tear production. Autoimmune diseases, where the immune system attacks the body, are common causes. These include rheumatoid arthritis, lupus, and Sjögren’s syndrome, which attacks tear and saliva glands.
Eye Surgery
Dry eyes can happen after eye surgeries such as cataract surgery, LASIK, or PRK. These procedures can affect the nerves that help control tear production. For most people, dryness improves as the eyes heal, but eye drops are often needed during recovery.
Medications
Many common medicines can dry out your eyes. These include antihistamines, some blood pressure medicines like beta-blockers, and certain antidepressants. Always read medication labels and talk with your doctor if dry eyes start after a new medicine.
Evaporative Dry Eye: The Most Common Type
The most common cause of dry eyes is when tears evaporate too quickly. This often happens because the oil layer of your tears is not working well. Tiny glands in your eyelids, called Meibomian glands, make this oil. When these glands get blocked, tears dry up faster.
This condition is called Meibomian gland dysfunction. It is often treated with warm compresses and gentle eyelid cleaning to open the glands and improve oil flow.
Things That Make Dry Eyes Worse
Dry Air and Wind
Heated or air-conditioned rooms, airplane cabins, and cold climates have very dry air. Wind, including riding a bike without eye protection, can also dry out your eyes quickly.
Too Much Screen Time
When you stare at a phone, tablet, or computer, you blink less often. Blinking spreads tears over your eyes. Fewer blinks mean less moisture, which leads to dryness and irritation.
Contact Lenses
Contact lenses sit directly in the tear film. If your eyes are dry, lenses can rub against the eye and cause discomfort. Changing lens type, solution, or how often you replace them can help.
What You Can Do to Feel Better
Use Artificial Tears
Over-the-counter artificial tears can bring fast relief. Some drops have preservatives that can irritate your eyes if used too often, so talk with your doctor about which type is best for you.
Improve Your Diet
Healthy fats can help tear quality. Flaxseed oil and omega-3 fatty acids may improve eye moisture for some people. These are found in flaxseed, fish, and supplements.
Protect Your Eyes
Wear wrap-around sunglasses or goggles in windy conditions. Use protective eyewear for sports and outdoor activities.
Control Your Environment
Use a humidifier at home, especially in winter. Avoid direct air from fans, heaters, or hair dryers blowing into your face.
Take Screen Breaks
Follow the 20-20-20 rule: every 20 minutes, look 20 feet away for 20 seconds. Make a habit of blinking fully and often.
When to Call Your Doctor
Dry eyes are usually not dangerous, but you should call your doctor if symptoms last more than a few days, suddenly worsen, or cause pain or vision changes. You should also talk to your doctor before starting new eye drops, especially if you have other eye conditions.
Sometimes dry eyes are a sign of another health issue that needs attention.