Falling asleep with contact lenses on, even for just a short nap, might appear harmless. However, eye health professionals emphasize that this habit can greatly heighten the risk of developing severe eye infections and long-term vision issues.
The cornea, which is the transparent front layer of the eye, depends on oxygen from the air to remain healthy. Contact lenses naturally limit the amount of oxygen reaching the cornea during waking hours, and wearing them while sleeping further restricts this oxygen supply. This can compromise the eye’s protective barrier, making it easier for bacteria to invade and cause infections.
One of the most serious risks associated with sleeping in contact lenses is microbial keratitis, a bacterial infection of the cornea. If not treated promptly, it can progress into a painful corneal ulcer that may lead to permanent scarring and long-term vision impairment. Experts warn that even infrequent naps with contact lenses can increase the likelihood of this condition.
Fortunately, these complications are largely preventable with proper lens care. Eye experts advise removing contact lenses before sleeping or napping, practicing good lens hygiene, and adhering to the replacement schedule recommended by eye care professionals. Anyone experiencing symptoms like eye redness, pain, sensitivity to light, blurred vision, or sudden visual changes should seek medical attention immediately. Early treatment can help avert significant damage and safeguard long-term vision.
When used correctly, contact lenses are regarded as safe. Nonetheless, sleeping in them poses an unnecessary risk of preventable eye complications. By following recommended care practices, contact lens users can protect their eye health effectively.