In this task, you are given a text of many news articles seperated by special token "|||||". Your task is to summarize them.
Q: If you're one of the nearly 41 million Americans who wear contact lenses, the process of rinsing them off and popping them in may seem as routine as brushing your teeth. 
  
 But it's easy to get careless with your contact lens hygiene, and health officials are warning that unsafe habits could be putting your eyes at risk. 
  
 A new report out Thursday from the U.S. Centers for Disease Control and Prevention finds that virtually all contact lens wearers admit to at least one safety lapse that could increase their risk of an eye infection. Nearly one-third sought medical care for a red or painful eye condition that might have been preventable through more sanitary handling of contact lenses, the CDC said. 
  
 The report is based on a nationwide survey of about 1,000 contact lens wearers age 18 or over. About 93 percent reported wearing some variety of soft contacts, made of flexible plastics that allow oxygen to pass through to the cornea. 
  
 Ninety-nine percent of contact lens wearers surveyed admitted cutting corners in their contact lens hygiene at least once, in a way that could increase the risk for eye infection or inflammation. 
  
 The most common offense: napping in contact lenses. More than 87 percent admitted they'd fallen asleep in their contacts at some point. 
  
 Just over half said they'd slept overnight with their lenses in. While certain contact lenses are FDA approved for overnight wear, the CDC says sleeping in any type of lens can increase the risk of eye infections. 
  
 Almost 85 percent ever showered with their lenses in, and 61 percent went swimming with them, even though health officials say lenses should not come in contact with water. 
  
 Lens cleaning habits also left something to be desired, with 55 percent of users sometimes "topping off" their lens case with more disinfecting solution, rather than emptying and cleaning the case before filling with fresh solution, as recommended. 
  
 And more than a third of those surveyed had rinsed their lenses in tap water instead of sterile disinfecting solution, a potentially risky move. "Household tap water, although treated to be safe for drinking, is not sterile and contains microorganisms that can contaminate lens cases and contact lenses and cause eye infections," the report says. 
  
 "Good vision contributes to overall well-being and independence for people of all ages, so it's important not to cut corners on healthy contact lens wear and care," the lead author of the study, CDC medical epidemiologist Jennifer Cope, M.D., M.P.H., said in a statement. "We are finding that many wearers are unclear about how to properly wear and care for contact lenses." 
  
 To help reduce the risk of eye irritation or infections, the CDC offers the following tips: 
  
 Never sleep in contact lenses unless advised to do so by an eye care provider. 
  
 Keep all water away from contact lenses. Avoid showering while wearing contact lenses, remove them before using a hot tub or swimming, and never rinse or store contact lenses in water. 
  
 Replace contact lenses as often as recommended by an eye care provider. 
  
 Discard used solution from the contact lens case and clean it with fresh solution, never water, every day. 
  
 Store contact lens case upside down with the caps off after each use. 
  
 Replace the contact lens case at least once every 3 months. 
  
 Visit an eye care provider as often as recommended by your primary health care provider. ||||| Breaking News Emails Get breaking news alerts and special reports. The news and stories that matter, delivered weekday mornings. 
  
 / Updated By Maggie Fox 
  
 Nearly 41 million American adults wear contact lenses and virtually every single one is doing something to get germs in their eyes, a new federal survey shows. 
  
 And they’re paying for it. Nearly a third admit they’ve gone to a doctor because of red or painful eyes, the Centers for Disease Control and Prevention says. 
  
 Half or more of wearers admitted they slept or napped while wearing lenses. About 55 percent said they just topped off solution instead of changing it and rinsing the case. And 61 percent swam while wearing lenses. 
  
 And this survey only included adults. Teenagers may be even more likely to slip in their contact lens hygiene, CDC said. 
  
 “Approximately one third of contact lens wearers reported ever rinsing their lenses in tap water and 16.8 percent reported ever storing their lenses in tap water,” the CDC report reads. 
  
 More than 90 percent of people with rigid or “hard” lenses sometimes rinsed them in tap water, the team found. 
  
 “Even household tap water, although treated to be safe for drinking, is not sterile and contains microorganisms that can contaminate lens cases and contact lenses and cause eye infections," CDC said. 
  
 The CDC surveyed 1,000 people for its study. 
  
 “Contact lens wearers represent a significant proportion of the U.S. population, and their contact lens hygiene habits put them at risk for painful, costly eye infections that could lead to vision problems,” the report reads 
  
 “Nearly one million U.S. health care visits for keratitis (inflammation of the cornea) or contact lens complications occur annually, at a cost of $175 million. The largest single risk factor for microbial keratitis is contact lens wear.” 
  
 The CDC recommends: washing hands with soap and water and drying them well before touching contact lenses; taking out contacts out before sleeping, showering or swimming; rubbing and rinsing contacts in disinfecting solution each time they are removed; and rinsing the case with contact lens solution, drying it and storing it upside down with the caps off after each use. ||||| Woman inserting contact lenses. (Photo: julief514, Getty Images/iStockphoto) 
  
 If you wear contact lenses, chances are you've slept in them and on occasion forgot to disinfect them. 
  
 Of the 41 million estimated contact lens wearers in the United States; almost everyone is guilty of breaking the rules when it comes to contact care, according to a new survey from the Centers for Disease Control. 
  
 Fifty percent of contact users report wearing their lenses while sleeping and 82.3% of contact wearers keep their contact lens cases longer than recommended, according to the survey. 
  
 While sleeping in contacts or "topping off" the solution in the case instead of dumping it out, may seem like a small infraction, it can cause devastating eye infections and even blindness, according to Thomas Steinemann, a clinical spokesman for the American Academy of Ophthalmology. 
  
 "The lens case can get dirty, and germs from the case get onto the lens or vice versa, and eventually they get onto your eye and attack your cornea," Steinemann told USA TODAY Network, adding that infections can happen within 24 hours of wearing a compromised lens. 
  
 Contact users answered questions in an online survey administered by the CDC in collaboration with the Contact Lens Assessment Youth group. The survey found that 99% of those surveyed are at risk for serious eye infections because of poor hygienic behaviors. 
  
 The CDC noted that contact wearers should keep all water away from contact lenses, discard used disinfectant solution from the case and clean the case each day and replace their case every three months. 
  
 One-third of those surveyed reported they sought medical help for red or painful eyes related to wearing contact lenses. 
  
 Chad Groeschen, 39, of Cincinnati, Ohio, developed a corneal ulcer infected with Pseudomonas bacteria, after sleeping in extended use contacts for almost a week. (Photo: Cincinnati Eye Institute) 
  
 Chad Groeschen, 39, of Cincinnati, Ohio, developed a corneal ulcer infected with Pseudomonas bacteria, after sleeping in extended use contacts for almost a week. 
  
 "Halfway through the day my eyes started itching, and I thought it was probably allergies, so I popped them out," he said. "The next morning the vision in my left eye started to turn cloudy." 
  
 Within days, Groeschen, who works as a sculptor at a renovation organization, was unable to see out of his left eye. His doctor said he will likely need a corneal transplant to restore his sight. 
  
 "The kind of contacts I have are called "Night and Day" contacts, and it was my impression you could leave them in for 30 days straight," he said. "I figured the less I was messing with my eyes, the better." 
  
 Steinemann said that even a brief nap in contacts could be a bad idea. 
  
 While the contact lens is fairly porous and oxygen can reach the cornea, it still acts as a barrier. When a person sleeps in a pair of contacts, their eyelid acts as a second barrier, according to Steinemann. 
  
 "Honestly, if patients ask the safest thing to do I would say take the lens out [when sleeping,]" Steinemann said. "When you have the plastic contact lens over the eye, you are depriving the eye of oxygen but also increasing the risk of germs attacking the cornea." 
  
 Steinemann said poor contact lens care is like Russian Roulette. 
  
 "People get in a routine and tend to get very comfortable with certain routines and for a while they get away with it, but eventually they wont," he said. 
  
 Tips on safe contact use: 
  
 • Replace contact lenses on time. "One thing that we see people doing a lot is using the lenses beyond the lifetime of the lens," Steinemann said. "If it's a two-week lens, they keep it four or six weeks, if it's one month, they keep it two." Steinemann said the lens can become worn and more susceptible to germs if they are used beyond the recommended time. 
  
 • Avoid water when wearing contact lens. Water from the tap is not clean enough to rinse lenses or cases, according to the American Academy of Ophthalmology. The parasite Acanthamoeba can be found in tap water and "can cause severe eye infections resulting in vision loss," according to the academy. 
  
 • Do not sleep in contact lenses. The contact lens and your eyelid act as a double barrier, potentially trapping bacteria on the lens directly on your eye. 
  
 • Contact wearers should use clean solution each time and lens cases should be discarded after three months. 
  
 Follow @MaryBowerman on Twitter. 
  
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A: 
Contact lens wearers nationwide have been interviewed by the Centers for Disease Control and Prevention, and the CDC has concluded that almost all of the 41 million contact lens wearers in America are doing at least one thing wrong, NBC News reports. Among the bad habits that the CDC warns of are putting 99% of contact lens wearers at risk of eye infection: Rinsing them in tap water: This just isn't clean enough. "Even household tap water, although treated to be safe for drinking, is not sterile and contains microorganisms that can contaminate lens cases and contact lenses and cause eye infection," the CDC says. Swimming and showering with lenses in: These are also no-nos, but the survey found that 61% and 85% of wearers do these things, respectively, reports CBS News. Using them for far too long: This makes them more susceptible to germs. "One thing that we see people doing a lot is using the lenses beyond the lifetime of the lens," American Academy of Ophthalmology spokesman Thomas Steinemann tells USA Today. "If it's a two-week lens, they keep it four or six weeks; if it's one month, they keep it two." Not emptying the lens case: More than half of lens wearers reported sometimes "topping off" their lens case with more solution instead of emptying and cleaning daily as recommended. Napping or sleeping in contacts: People who say this can make you go blind are right. With the eyelid acting as a barrier, this can trap bacteria on your eye. "When you have the plastic contact lens over the eye, you are depriving the eye of oxygen but also increasing the risk of germs attacking the cornea," Steinemann says. (Researchers say wearing contacts can make lasting changes to your eyes.)