Though it might seem innocuous, drifting off to sleep with contact lenses still in place—even for a short nap—can pose significant risks to eye health, experts caution. Wearing contact lenses reduces the amount of oxygen that reaches the cornea, the eye’s transparent front layer, which relies on air for its oxygen supply. Sleeping with lenses in further restricts this vital oxygen flow, potentially weakening the eye’s defenses and making it more susceptible to bacterial infections.
One serious concern is microbial keratitis, a bacterial infection of the cornea that can occur from sleeping in contact lenses. If not treated promptly, this condition can escalate into a painful corneal ulcer, potentially causing permanent scarring and long-term vision impairment. Even infrequent naps with lenses can significantly increase the likelihood of developing such infections, warn specialists.
The good news is that these complications are largely preventable. Eye health professionals emphasize the importance of proper lens care, which includes removing contact lenses before sleeping or taking a nap, adhering to recommended lens hygiene practices, and following the replacement schedule suggested by an eye care provider.
It’s crucial for individuals to be vigilant about symptoms that could indicate eye issues, such as redness, pain, sensitivity to light, blurred vision, or sudden changes in eyesight. Seeking immediate medical attention if these symptoms arise can be key to preventing severe damage and preserving vision over the long term.
While contact lenses are generally safe when used as directed, sleeping in them unnecessarily elevates the risk of preventable eye complications. By taking simple precautions, lens wearers can significantly reduce the chances of encountering these problems and maintain healthy vision.