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What Causes Dry Eyes All of a Sudden?

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Person rubbing both eyes while sitting at a desk with a computer, keyboard, and mouse near a window.

Key Takeaways

  • Sudden dry eyes often come from screen time, weather changes, or contact lens habits.
  • Health shifts like menopause, diabetes, and autoimmune conditions can affect your tears.
  • Allergies, clogged oil glands, and some medicines can feel like dry eye.
  • Simple home steps such as the 20-20-20 rule and warm compresses can bring relief.
  • Our team at See and Co offers exams, OptiLight by Lumenis, and ZEISS lenses for comfort.

Dry Eye Can Happen Quickly

One day, your eyes feel fine. The next day, they’re burning while you work. This kind of quick shift can catch you off guard and leave you feeling miserable.

Dry eye happens when your tear film breaks down faster than your eyes can replace it. This is usually due to screen habits, your surroundings, contact lenses, or a change in your health.

Common symptoms of dry eye include:

  • Stinging, burning, or a scratchy feeling like sand in your eye
  • Redness or sensitivity to bright light
  • Watery eyes or vision that blurs and then clears

Common Reasons Why Dry Eyes Show Up

Screen Time & Less Blinking

When you stare at a computer or phone, you blink less often. This reduced blink rate leaves your tear film more exposed to the air.

Weather & Environment

Your environment also plays a role. Wind, smoke, and dry indoor heat all pull moisture from the surface of your eyes.

Fans, heaters, and air conditioning do the same thing, especially when they blow straight at your face. Seasonal allergies in Centreville, VA can add to this problem, leaving your eyes itchy and dry at the same time.

Contacts & Eye Products

Contact lenses sit directly on your eyes, which means that they can easily affect your tear film. Sleeping in contacts or wearing them longer than recommended reduces the amount of oxygen that reaches your eyes, which can dry things out quickly.

Lash extensions can trap bacteria and debris along your lash line, which irritates the eye and adds to dryness.

Health Changes Linked to Dry Eyes

Sometimes, the cause of dry eye has less to do with your screen and more to do with what’s happening inside your body. Shifts in your health can change how many tears you make and how well they work.

A few common causes include:

  • Hormone changes during menopause that lower tear production
  • Diabetes, which can affect the quality of your tears
  • Autoimmune conditions such as rheumatoid arthritis

If your dry eye started around the same time as another health change, make sure to mention this link to your optometrist.

Optometrist examines a seated patient's eyes using a slit lamp, with an eye chart on the wall.

What Can Be Mistaken for Dry Eyes

Not every dry, irritated feeling is caused by a lack of tears. All of the following conditions are often confused with dry eye:

  • Seasonal or indoor allergies that leave eyes itchy and red
  • Clogged oil glands along the lids, known as blepharitis
  • Certain medicines, including some allergy pills, that dry the eyes as a side effect

An eye exam can help pin down which of these conditions you actually have.

How to Find Relief & When to See Our Team

Simple Steps to Try at Home

Small changes can often offer relief. If you spend a lot of time in front of screens, try the 20-20-20 rule: every 20 minutes, look at something 20 feet away for 20 seconds. This gives your eyes a chance to blink fully and rest.

Preservative-free artificial tears can add moisture to your eyes during the day.

Cleaning your eyelids daily and using a warm compress can help resolve blockages in the glands that produce oils for your tears.

Care Options at See and Co

When home care isn’t enough, a full eye exam can help. Professional, in-office treatments can address the root causes of dry eye and help you find lasting relief. At See & Co, we offer options like OptiLight by Lumenis to address inflammation and help resolve blockages in the oil glands.

We also offer Zeiss lenses to help manage symptoms of digital eye strain (which can also cause dry eyes).

Signs to Book a Visit

Trust your eyes when something feels off. Reach out if you notice any of the following:

  • Symptoms that stick around for more than a few days
  • Pain, ongoing redness, or changes in your vision

Our team at See and Co is here to help you fight discomfort. If you’re searching for an optometrist in Centreville, VA who takes the time to explain your options, reach out today to book your appointment.

Written by Dr. Emily Ngo Chen, O.D.

Dr. Emily Ngo Chen completed her Bachelor’s in Biology at Florida Gulf Coast University in Fort Myers, FL, before earning her doctorate at Nova Southeastern University College of Optometry in Fort Lauderdale, FL. Her dedication to eye care is evident through her passion for providing comprehensive services to families, with a focus on treating dry eyes and managing myopia.

Outside of her professional life, Dr. Chen values spending quality time with her family and her corgi and yorkie. Her interests include watching Anime and K-dramas. Dr. Chen is able to conduct an eye exam in Spanish, and is fluent in Vietnamese.

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