Wearing contact lenses might feel like second nature for those who rely on them for clear vision throughout the day. However, eye health experts caution that falling asleep in contacts, even for short naps, can elevate the risk of severe eye infections and potentially cause permanent vision problems.
To maintain its health, the cornea, which is the transparent surface at the front of the eye, requires oxygen from the surrounding air. Contact lenses inherently limit the oxygen supply to the cornea when worn during waking hours. When they are left in while sleeping, this oxygen deprivation is exacerbated, compromising the cornea’s protective barrier. This weakened state makes it easier for bacteria to infiltrate and lead to infections.
Among the most concerning issues that can arise from sleeping in contact lenses is microbial keratitis, a bacterial infection of the cornea. If not promptly treated, this infection can progress to a painful corneal ulcer, potentially leaving permanent scars and causing lasting vision impairment. Experts emphasize that even infrequent naps with contact lenses on can increase the likelihood of such complications.
Thankfully, these issues can largely be avoided with proper contact lens care. Eye care professionals advise removing lenses before sleeping or taking naps, adhering to recommended lens hygiene practices, and following the replacement schedule provided by an eye care specialist. Such measures are crucial in minimizing risks associated with contact lens use.
Individuals who notice symptoms like redness, discomfort, sensitivity to light, blurred vision, or sudden changes in eyesight should seek medical attention without delay. Early intervention is essential to preventing significant eye damage and preserving long-term vision. When used as directed, contact lenses are safe; however, sleeping with them on unnecessarily heightens the risk of avoidable eye health issues.