Wearing contact lenses to bed, even for a quick nap, may seem innocuous, but experts in eye health caution that it significantly heightens the risk of severe eye infections and potential long-term vision impairment. The cornea, which is the transparent front part of the eye, requires oxygen from the environment to remain healthy. Contacts naturally reduce the amount of oxygen that reaches the cornea throughout the day, and wearing them overnight further diminishes this supply. This lack of oxygen can compromise the eye’s protective barrier, making it more susceptible to bacterial infections.
A particularly serious condition associated with sleeping in contact lenses is microbial keratitis, a bacterial infection of the cornea. If not treated promptly, this infection can progress to a painful corneal ulcer, potentially leading to permanent scarring and lasting vision loss. Experts warn that the risk is elevated even by occasionally napping with contacts in.
Thankfully, these issues can largely be averted with proper lens care. Eye care professionals advise removing contact lenses before sleeping or taking short naps, practicing good lens hygiene, and adhering to the replacement schedule suggested by an eye care provider.
Individuals who notice symptoms such as redness in the eyes, discomfort, sensitivity to light, blurred vision, or sudden changes in their eyesight are urged to seek medical attention without delay. Early treatment can prevent significant damage and help preserve long-term vision.
While contact lenses are generally considered safe when used correctly, sleeping in them unnecessarily increases the chance of preventable eye complications. By being cautious and following recommended practices, users can enjoy the benefits of contact lenses without compromising their eye health.