Key Takeaways
- Dry eye happens when your eyes don’t have enough good-quality tears to stay moist.
- Uneven tears can scatter light and blur your vision.
- Blur from dry eye often changes between clear and fuzzy throughout the day.
- Screens, dry air, contact lenses, age, and some medicines can all raise your risk.
- Home care and in-office treatments can help ease symptoms and support clearer vision.
Dry eye is known for feeling scratchy and tired. Many people are surprised to learn they can affect how clearly you see, too. At Perry & Morgan Eyecare, we often hear from patients whose vision seems to slip in and out of focus over the course of a day.
Yes, dry eye can cause blurry vision, because tears that don’t spread evenly scatter light as it enters your eye. If that sounds familiar, our dry eye therapy options may help your eyes feel more comfortable.
What Is Dry Eye?
Dry eye happens when your tears can’t keep your eyes moist enough. It usually affects both eyes at once. You might notice it while reading a book, scrolling on your phone, or driving home at dusk. Simple tasks can start to feel tiring when your eyes keep asking for a break.
Most cases come down to 2 problems. Your eyes may not make enough tears, or the tears they do make may dry up too quickly.
That second problem often starts with the oil glands along the edges of your eyelids. These glands add a thin layer of oil that slows evaporation. When they get clogged, your tears can evaporate too fast.
Common Signs of Dry Eye
Dry eye can show up in different ways, so watch for signs like these:
- A stinging or burning feeling
- A gritty feeling, like there’s sand in your eye
- Redness
- Sensitivity to light
- Watery eyes
Watery eyes might sound like the opposite of dry eye. But when the surface of your eye gets irritated, it can respond with extra watery tears that run off before they do much good.
How Dry Eye Blurs Your Vision
Your tears form a smooth, clear layer across the front of your eye. When they spread evenly, light passes through cleanly, and you can read street signs and see the fine print on a menu.
A patchy tear layer scatters light as it enters the eye. Things can start to look smudged, similar to wearing glasses that need a good cleaning. Every blink spreads a fresh layer of tears across your eyes. That’s why a few quick blinks can sometimes clear things up for a moment.
How to Tell if Dry Eye Is Behind Your Blurry Vision
Blurry vision has plenty of possible causes, so pay attention to when it happens. Dry eye tends to leave clues like these:
- The blurriness gets worse later in the day, especially after long hours on a screen.
- Your eyes feel dry or gritty whenever your vision gets fuzzy.
- Your glasses prescription is up to date, but things still look hazy.
What Raises Your Risk of Dry Eye?
Your everyday routine plays a big part. When you stare at a screen for long stretches, you tend to blink less often, which gives your tears more time to evaporate.
Wind, smoke, and dry indoor air can also leave your eyes feeling parched. Dry climates and high altitudes can make tears evaporate faster, and much of Utah has both. Wind and smoke can dry your eyes out even more.
Wearing contact lenses or having laser eye surgery in the past can raise your risk too.
Age, Health and Diet
Dry eye becomes more common after age 50, and women are more likely to develop it, often because of hormone changes. Certain medicines, including some antihistamines and blood pressure medications, can also reduce how many tears your eyes make.
What you eat matters as well. Vitamin A and omega-3 fatty acids both support healthy tears, so getting too little of either may leave your eyes more prone to dryness.
How to Ease Blurry Vision from Dry Eye
A few small changes can help your eyes feel more comfortable, so try these steps:
- Use artificial tears regularly, even when your eyes feel fine.
- Run a humidifier at home, especially as the air turns dry this winter.
- Wear wraparound sunglasses outdoors to shield your eyes from wind.
- Take regular screen breaks and remind yourself to blink fully and often.
Treatment Options from Your Eye Doctor
In-office care can help when artificial tears and other home habits don’t bring enough relief. We offer treatments like OptiLight intense pulsed light (IPL), which uses pulses of light to target inflammation around the eyelids that can contribute to dry eye.
Your optometrist may also prescribe eye drops that calm inflammation or help your eyes make more of their own tears. From there, we can build a treatment plan around your eyes and daily routine, then adjust it at follow-up visits as your needs change.
When to See an Optometrist About Blurry Vision
Book a visit if you notice any of these signs:
- Dryness or blur that persists or worsens.
- Red or painful eyes
- Trouble wearing your contact lenses comfortably
- Difficulty seeing clearly when you drive at night
Treating dry eye can also protect the surface of your eye. Healthy tears help wash away debris and can lower your risk of infection.
Book a Visit for Dry, Blurry Eyes
Blurry vision that comes and goes can make reading and driving harder than they need to be. If dry eye is behind it, we may be able to help in several ways.
Our team at Perry & Morgan Eyecare can take a close look at your tears and find out what’s causing your blurry vision. Book an appointment at either of our offices, and we’ll work with you on a plan that fits your eyes.
