Why Are My Eyes So Dry? Dry Eye Causes, Symptoms and Treatment

You blink, and for a second your eyes feel fine. Then it comes back — that gritty, sandy feeling, like an eyelash you can’t find. Maybe your eyes burn by mid-afternoon. Maybe they water so much that people think you’re crying. That can feel backward for something called “dry” eye.

If this sounds like your day, you’re not alone. Dry eye is very common, especially here in Florida, where sun, Gulf breezes and air conditioning all work against your tears.

Here’s what most people don’t know: dry eye isn’t only about having too few tears. Often it’s about not having the right tears — or tears that dry up before they can do their job.

The good news: there’s a lot you and your eye doctor can do to make your eyes more comfortable. This guide explains what’s going on, why it happens, and when it’s time to stop guessing at drugstore drops and get your eyes checked.

Key Takeaways

• Dry eye happens when your tears don’t keep the surface of your eye moist — either too few tears or tears that dry up too fast.
• Watery eyes can be a sign of dry eye. Your eye floods itself with extra tears to fight the irritation.
• Most long-lasting dry eye involves tiny oil glands in your eyelids (meibomian glands) that aren’t working well.
• Screens, age, contact lenses, some medicines and dry indoor air all make it worse.
• Simple habits and drugstore drops help mild cases. Dry eye that lasts or gets worse deserves an exam.
• Left alone for years, severe dry eye can harm the surface of your eye and blur your vision.

What Is Dry Eye?

Think of your tears like a thin coat of paint with three layers. Every time you blink, you spread a fresh coat across your eye.

• The bottom layer is a sticky mucus that helps tears cling to your eye.
• The middle layer is watery. That’s what most people picture when they think of tears.
• The top layer is a thin layer of oil. It works like a lid that keeps the water from drying up too fast.

When all three layers are healthy, your eyes feel smooth and clear. When one layer falls short — usually the oil or the water — dry spots form. Your brain feels those spots as burning, grittiness or stinging. Then your eye may flood itself with watery tears, which is why so many people with dry eye complain about tearing up.

Doctors sometimes call it “dry eye disease.” That just means it tends to come and go over time. The goal is to manage it well, with a plan that fits your life.

What Are the Two Types of Dry Eye?

Knowing which type you have shapes your treatment, so this part matters.

Evaporative dry eye (tears dry up too fast)

This is the most common kind. Tiny glands along the edge of your eyelids, called meibomian glands, make the oil layer. When those glands get clogged — called meibomian gland dysfunction — the oil turns thick, like toothpaste that won’t squeeze out. Without enough oil, your tears dry up between blinks.

Aqueous-deficient dry eye (too few tears)

This type means your eyes don’t make enough of the watery layer. It’s less common and often linked to age or to health conditions that affect the tear glands. Many people have a mix of both types. That’s one reason guessing from a website — even this one — only gets you so far.

What Causes Dry Eye?

Dry eye usually has more than one cause. Common ones include:

• Age. Tear production tends to drop as we get older, especially after 50.
• Being a woman, especially around menopause. Hormone changes affect the tear and oil glands.
• Screens. When you stare at a phone, tablet or TV, you blink a lot less. Fewer blinks means more dry spots.
• Contact lenses. Wearing them for years can irritate the eye.
• Medicines. Allergy pills (antihistamines), some blood pressure pills, some antidepressants and others can dry your eyes.
• Florida living. Ceiling fans, car vents, air conditioning most of the year, sun and wind off the water all dry out tears faster.
• Health conditions. Diabetes, thyroid problems and some autoimmune conditions are linked to dry eye.
• Eyelid problems. Eyelids that don’t close all the way, or inflamed eyelid glands (for example with rosacea, a skin condition that causes redness), can upset your tears.

If several of these fit you, you haven’t done anything wrong. It just means having a plan matters more.

What Are the Symptoms of Dry Eye?

Dry eye doesn’t always feel “dry.” People describe:

• Burning, stinging, or a scratchy, gritty feeling
• Feeling like something is in your eye when nothing is there
• Red eyes
• Watery eyes (yes, really)
• Blurry vision that clears for a moment when you blink
• Tired eyes after reading, driving or screen time
• Trouble wearing contacts as long as you used to
• Stringy mucus around the eyes
• Sensitivity to light
• Symptoms that get worse at night or in air conditioning

One strong clue: your vision gets a little fuzzy, you blink, and it sharpens for a moment before drifting again. That’s your tear layer breaking up and resetting.

How Does an Eye Doctor Check for Dry Eye?

You can’t tell which type you have on your own. An exam sorts it out. At your visit, we usually:

• Ask about your day — screen time, medicines, and when your eyes feel worst.
• Look at your tears and eyelids under a microscope. We check how your tears spread, how fast they break up, and whether the oil glands are clogged. A gentle press on the eyelid shows what the oil looks like.
• Use a special dye. One drop makes dry spots on the surface of your eye easy to see.
• Measure your tears. A quick test estimates how many watery tears you make.

These tests are quick and add just a few minutes to your exam. The payoff is a plan aimed at your type of dry eye, not a one-size-fits-all bottle of drops.

How Is Dry Eye Treated?

There’s no magic cure that makes dry eye go away forever, so be careful with anyone who promises one. But there are many steps that can help, from simple to more advanced.

Artificial tears and gels

Drugstore lubricating drops are the first step for many people. If you use them more than a few times a day, choose preservative-free drops — they’re gentler for frequent use. Thicker gels or nighttime ointments help people who wake up with sore, dry eyes.

Warm compresses and eyelid care

For the common evaporative type, warming your eyelids and gently cleaning the edges can help unclog the oil glands. Done every day, this is one of the at-home steps we suggest most often.

Prescription eye drops

When drugstore drops aren’t enough, your doctor may prescribe drops that calm swelling (inflammation) and help your eyes make more of their own tears. These work slowly, so give them time.

In-office treatment

Some people benefit from punctal plugs — tiny plugs placed in the tear drain in the inner corner of the eyelid, so your own tears stay on the eye longer. Your doctor will only suggest this if it fits your eyes.

The right step depends on your exam. That’s the whole point of getting checked.

What Can I Do at Home for Dry Eyes?

• Try the 20-20-20 rule. Every 20 minutes on a screen, look at something about 20 feet away for 20 seconds, and blink fully a few times.
• Point air vents away from your face — in the car, at your desk, and ceiling fans over your bed.
• Run a humidifier, especially when the AC is on.
• Wear wraparound sunglasses outside to block wind and sun.
• Drink enough water and get enough sleep.
• Take breaks from screens and from contact lenses.
• Ask your eye doctor before starting any supplement for dry eye.

When Should I See an Eye Doctor for Dry Eye?

Mild dryness that goes away with rest and a drop or two is usually fine to handle at home. Make an appointment if:

• It lasts for weeks or keeps coming back
• Drops aren’t helping anymore
• Your vision is getting blurry or your eyes hurt
• Your eyes are very red, painful or sensitive to light
• Dryness gets in the way of reading, driving or work

Sometimes what feels like dry eye is something else — an eyelid problem, an infection, or an early sign of another eye condition. That’s one more reason to get it checked. Sudden eye pain or a sudden change in your vision needs care right away — call us.

Frequently Asked Questions

What does dry eye feel like?

Many people say their eyes feel gritty or sandy, like something is stuck in them. Others feel burning, stinging or tired eyes by the end of the day. Some notice blurry vision that clears when they blink, or even watery eyes, because the eye makes extra tears when it’s irritated.

Can dry eye cause blurry vision?

Yes. Your tears are the first thing light passes through. When your tear layer is patchy, your vision can blur or come and go, especially when reading or driving at night. It often sharpens for a moment right after you blink. Blurry vision can have other causes too, so it’s worth an exam.

Why do my eyes water if they’re dry?

When the surface of your eye gets irritated, your eye makes a flood of extra tears to protect itself. Those tears are mostly water and drain away fast, so they don’t fix the real problem. Watery eyes are one of the most common — and most confusing — signs of dry eye.

What eye drops are best for dry eyes?

For mild dry eye, lubricating drops called artificial tears can help. If you use them often, pick preservative-free ones. Try not to use “redness relief” drops every day — they can make redness worse over time. If you need drops more than a few times a day, it’s time for an exam so you get the right kind for your type of dry eye.

Can dry eye be cured?

For most people, long-lasting dry eye is managed, not cured — a lot like high blood pressure. The goal is more comfortable eyes and clearer vision with a plan you can stick with.

What are punctal plugs?

Punctal plugs are tiny plugs placed in the small drain openings in the inner corners of your eyelids. They help your own tears stay on your eye longer. They’re placed during an office visit. Your eye doctor will tell you if they’re a good fit for you.

Does screen time cause dry eye?

It’s a big part of it. When you focus on a screen, you blink much less, and many blinks are only partial. You don’t have to give up screens — just take breaks and blink on purpose.

Does Florida weather make dry eye worse?

It can. Air conditioning, ceiling fans, sun and Gulf breezes all speed up how fast your tears dry up.

Do warm compresses help dry eye?

For the common evaporative type, often yes. Warmth softens the thick oil in your eyelid glands so it can flow again. The key is doing it regularly, not just once when your eyes feel bad. We can show you how.

Can my medicines cause dry eyes?

They can. Allergy pills, some blood pressure medicines, some antidepressants and others list dry eye as a side effect. Don’t stop any medicine on your own — bring your full list to your exam so your doctor can take it into account.

Find Out What’s Causing Your Dry Eyes

Burning, gritty, tired eyes are worth checking. Dry eye is common, and there’s a lot that can help. The first step is finding out which type you have. Dr. James Powers and our team see patients at our St. Petersburg, Clearwater and New Port Richey offices, and we check your insurance before your visit.

• New Port Richey — 5413 US Highway 19, New Port Richey, FL 34652
• Clearwater — 2565 Enterprise Rd, Clearwater, FL 33763
• St. Petersburg — 603 7th St S, St. Petersburg, FL 33701

More guides: Glaucoma · Cataracts · Macular degeneration · Parts of the eye

Sources: National Eye Institute, “Dry Eye” (nei.nih.gov); American Academy of Ophthalmology, “What Is Dry Eye?” (aao.org).

This article is general information, not medical advice for your eyes. For advice about your own eyes, call us or see your eye doctor.