“LED masks tend to be safe since most of them have the eyes cut out so that the light is not directed into the eye, but they may not be risk-free,” says Robert Layman, OD, president of the American Optometric Association. Even though at-home masks have a lower intensity than those used in clinical environments, Layman says there could be some spillover light near the eye. Other factors that could contribute to potential eye problems include how long these masks are being worn, what intensity the LED light is, and whether the patient has their eyes open while wearing them.
“For any type of light therapy treatment, eye protection, such as blackout goggles, are a must,” Layman says. (Some masks come with the appropriate eyewear.)
Layman says that people with certain eye-related conditions, such as congenital retinal disorders, or people who take certain medications that make them more sensitive to light should be cautious when using these devices. “Prolonged exposure to blue or red light may result in blurry vision, eye pain, eye irritation, or changes in vision for some patients,” he says.