(DDM) – Millions of people around the world rely on contact lenses for clear vision.
Health experts, however, caution that improper use of these lenses could lead to infections, irritation, and even permanent vision loss.
Diaspora Digital Media (DDM) learned that over 45 million Americans currently use contact lenses, making safety guidelines a public health priority.
The U.S. Centers for Disease Control and Prevention (CDC) notes that while lenses are convenient, they are not risk-free devices.
Doctors warn that contact lens wearers face higher risks of inflammation, corneal damage, and bacterial infections compared to non-users.
Professor Aaron Zimmerman of Ohio State University’s College of Optometry stressed that improper hygiene habits increase these risks significantly.
“Sleeping with lenses, exposing them to water, or topping off old disinfectant solution can all trigger serious eye infections,” Zimmerman said.
Similarly, Dr. Mohammad Dastjerdi of Rutgers Medical School highlighted risky behaviors among wearers, such as showering or swimming with lenses.
He added that ignoring discomfort or over-wearing lenses can also cause severe complications that may threaten sight.
Penn Medicine’s Dr. Stephen Armenti, however, reassured users that the risks remain “extremely low” when lenses are used properly.
Experts recommend daily disposable lenses as the safest option, since they eliminate buildup of bacteria or deposits.
Doctors also advise handwashing before touching lenses, regular replacement of storage cases, and avoiding overnight wear.
Dr. Zimmerman explained that sleeping in contact lenses increases infection risk by six to eight times compared with day use only.
He noted that the natural blinking process helps refresh the eye’s tear film, preventing bacteria from collecting under the lens.
Wearing contacts overnight disrupts this process and limits oxygen flow to the cornea, triggering irritation and inflammation.
Long-term misuse, experts warn, can cause chronic dry eye, corneal scarring, or intolerance, where lenses become uncomfortable over time.
Despite the risks, most wearers can safely use contact lenses for many years if proper hygiene rules are followed.
Doctors stress that glasses should remain a reliable backup for anyone who relies heavily on lenses for vision.
“Contacts are safe when used responsibly,” Dr. Dastjerdi emphasized, urging wearers to follow medical guidelines strictly.