Nancy LeBrun is an Emmy and Peabody award-winning writer and producer who has been writing about health and wellness for more than six years

Bryan Wolynski, OD, is a board-certified community optometrist who has been in the eye care field for over 30 years. He works in private practice in New York City.

Dry eye syndrome (DES) is a condition that makes your eyes feel uncomfortable due to a lack of tears to lubricate your eyes. Dry eye syndrome is a common problem that affects at least an estimated 1 in 20 Americans, or more than 16 million people in the United States.

In a 2016 survey, close to 9 out of 10 eye care health professionals felt that increased screen time has contributed to a rise in DES, especially in younger people. Here are some important facts and statistics about dry eye syndrome.

Dry eye syndrome occurs when your eyes do not get enough moisture from your tears. Your eyes can become red, inflamed, and uncomfortable. DES can also affect how well you see.

Dry eye syndrome causes symptoms, including:

Experts estimated that more than 16 million Americans had dry eye syndrome in 2016, which equals about 1 in every 20 people. Some researchers believe the number is significantly higher, and it may be closer to 24 million people.

One reason for the increase may be how much time people spend on digital devices. One study found that at least half of those who use digital media experience DES.

There is some conflicting information about ethnicity and the incidence of dry eye syndrome. A 2017 study found no significant difference in diagnosed DES in a sample of Asian, Black, Hispanic and White Americans.

But that study noted that previous studies in Asia found a higher prevalence of dry eye syndrome in people in Asia, so this may mean that DES is being underdiagnosed in Asian Americans.

A large 12-year study published in 2019 reported an increase in the incidence of DES, which had tripled between 2005 and 2012. The study also found that:

Females are almost twice as likely as males to be diagnosed with DES. This may be linked to hormonal changes in pregnancy and menopause that cause dry eye.

Normally, glands above your eyes make the tears that keep your eyes wet by lubricating a thin film that covers your cornea , the outer layer of the eye. Dry eye happens when:

Dry eye can be caused by:

Factors that can increase your chances of developing dry eye syndrome include:

Sjögren's syndrome is an autoimmune disorder whose principal symptoms are dry eye and dry mouth. It's usually found in people over age 40 and affects 10 times as many females as males. An estimated 4 million people in the United States have this disorder. Lifestyle changes and medications, including immunosuppressants, can help with symptoms.

There are no screening guidelines for dry eye, but if your eyes feel itchy or tired, see a healthcare professional specializing in vision. They can:

If you have dry eye, your healthcare professional can advise you on treatment and whether your condition needs to be monitored. In some cases, surgery can help dry eye.

If severe dry eye isn’t treated, it could damage your vision by affecting the cornea. Milder dry eye can cause some visual disturbances. Complications include:

Severe cases can result in permanent loss of vision. Some experts have theorized that DES can cause sleep and mood disorders, migraines, and changes in cholesterol and triglyceride levels.

Dry eye syndrome is an increasingly common condition in the United States. Dry eye symptoms are itchiness, redness, stinging, and blurry vision. Causes of dry eye include certain autoimmune diseases, some medications, lack of Vitamin A, digital device use, or dry environments.

The likelihood of having dry eye increases with age. Females are more likely to have dry eye than males. In severe cases, dry eye can damage the cornea if not treated. See a healthcare provider specializing in vision if your eyes feel dry and tired.

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National Eye Institute. Dry eye.

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Auffret É, Gomart G, Bourcier T, et al. Digital eye strain. Symptoms, prevalence, pathophysiology, and management. J Fr Ophtalmol. 2021;44(10):1605-1610. doi:10.1016/j.jfo.2020.10.002

National Eye Institute. Causes of dry eye.

American Optometric Association. Dry eye.

Sjögren's Foundation. Quick facts.

Sjögren's Foundation. Understanding Sjögren's.

Szakáts I, Sebestyén M, Németh J, Birkás E, Purebl G. The role of health anxiety and depressive symptoms in dry eye disease. Curr Eye Res. 2016;41(8):1044-1049. doi:10.3109/02713683.2015.1088955.

Baksh BS, Garcia JC, Galor A. Exploring the link between dry eye and migraine: from eye to brain. Eye Brain. 2021;13:41-57. doi:10.2147/EB.S234073.

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