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As cold winter months arrive, many people will live in dry, indoor conditions with the heat on all day, which contributes to the season’s being the most common time people complain about dry, itchy and watery eyes.
Dry eye occurs when there is low tear production, or when the tear quality is poor and the tears evaporate too quickly. When people blink, tears spread evenly over the eye, keeping them smooth, healthy and clear. This is an important step for healthy, comfortable vision. However, it is estimated that 4.88 million Americans age 50 and older have dry eye, and suffer from irritated, burning and scratchy eyes.
In most cases, dry eye can be managed successfully; but colder weather is a common dry eye irritant of which people may be unaware. Dry eyes are often a common complaint for contact lens wearers during the colder, winter months.
A common trigger for dry eye can be the humidity in the air. University of Alabama at Birmingham Department of Ophthalmology instructor Marissa K. Locy, O.D., says there are a variety of tools people can use to prevent dry eye in colder weather.
“On average, the humidity drops in the winter with the colder weather,” Locy said. “In addition, most people turn on the heat in their homes or offices to combat the cold. So, what you end up having is lower humidity outside, and even lower humidity inside, making for warm, dry conditions where moisture can evaporate from the eye faster than normal.”
This can leave the eyes feeling gritty, dry, stuck and irritated. For those susceptible to dry eye or think they might be suffering from dry eye, here are some protective steps to take:
People with dry eyes may experience itchy, aching, fatigued, burning or red eyes. Blurred vision and sensitivity to light may also occur. Although dry eye cannot be cured, it is possible to relieve symptoms with eye drops and ointments, medication, or plugging some of the tear ducts to slow the drainage of tears once they collect on the eye’s surface. Certain new treatments can provide significant relief.
A simple way to gauge dry eye risk is by taking an online quiz at uabmedicine.org/dryeye. UAB Callahan Eye Hospital physicians are well-equipped to treat patients with varying degrees of dry eye.