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Can you sleep with contact lenses in?

Do not wear contact lenses for at least one full day to allow your eyes to heal. Contact your eye care provider immediately if you notice any symptoms of infection or discomfort.

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Photo by Andy BELLEGARDE from Unsplash.com

Contact lenses are wonderful because they provide a near-normal vision experience without corrective glasses. But they can be easily forgotten. When preparing to sleep, even for a nap, is not the time to forget about them.

To help contact lens wearers understand the implications of sleeping in their lenses, Lens.com published an informative guide.

Can you sleep in contact lenses?

Did you know that sleeping with regular contact lenses can result in severe infection and put you at risk for vision loss? Some contact lenses, like extended wear contacts, are meant to be worn overnight. However, many are not. You can only sleep in contact lenses designed for overnight wear, such as Acuvue Oasys with Hydraclear Plus, which is approved for up to six consecutive nights of wear. 

Contact lenses are medical devices that require proper care and handling to avoid severe side effects. Yet, as little as two percent of contact lens wearers report following their eye care provider’s instructions.

What happens if you sleep with contacts lenses in?

It’s important to know the implications of sleeping in contact lenses not designed for extended wear or if they are left in too long.

  • Eye Infections. Eye infections are the most significant risk of sleeping in contact lenses not approved for extended wear. When you sleep in your contact lenses, your risk of contracting eye infections increases six to eight times. The most common infection is called conjunctivitis or pink eye. This common eye infection is mainly caused by wearing contact lenses overnight, but it can also be caused by allergies or coming into contact with someone who has it. Sleeping with your contact lenses makes you more susceptible to pink eye because your contact lenses can leave microscopic tears on your cornea, thus increasing your odds of bacteria entering and getting trapped in your eye and leading to infection.
  • Hypoxia. Oxygen is essential for the healthy function of your eyes. There are no blood vessels in your corneas (the clear tissue at the front and center of your eye), which means they get their oxygen directly from the air. Contact lenses reduce the amount of oxygen that reaches your cornea. Now imagine sleeping with contact lenses in your eyes. With our eyes shut and contact lenses, the amount of oxygen is greatly restricted and can lead to hypoxia of the eye. This extreme oxygen deprivation can cause warping, scarring, pain, and vision loss.
  • Corneal Ulcers. If your contact lenses are not taken out and cared for properly, you may cause so much irritation that you cause corneal ulcers, or open sores on the cornea, to form. These ulcers can even become so severe that they require a corneal transplant using donor tissue. Those who sleep with contact lenses not approved for extended wear are five times more likely to develop corneal infections, permanently damaging their vision.
  • Contact Lens-induced Acute Red Eye (CLARE). Tight Lens Syndrome or Contact Lens Overwear Syndrome is usually marked by light sensitivity, redness, tearing, and decreased vision. When a contact lens fits too tightly, it will stick to the cornea like a suction cup, and this will cause the cornea to swell. If not treated, You could be at risk for a severe infection that can cause a corneal ulcer leading to permanent scarring and vision loss. Contact lenses are like tiny sponges; they expand when they are moist and shrink when they dry out.
  • Giant Papillary Conjunctivitis (GPC). Wearing your contact lenses for prolonged periods or overnight can cause bumps to form underneath your eyelids called GPCs. If you wear your contacts while you sleep, you have the greatest chance of experiencing this unpleasant condition. These bumps can result in your contact lenses no longer fitting properly. If this happens, your eye care provider may ask you to stop wearing your contact lenses for a week and see if your symptoms subside.

Why does sleeping with contact lenses increase your risk of an eye infection?

After wearing your lenses all day long, napping or falling asleep means your lenses have collected pollutants, bacteria, and dirt that could increase your risk of complications. As your eye and contact lens becomes dehydrated in your sleep, the lens starts to shrink and tear at your cornea, and these microscopic tears allow an entry point for bacteria to get into your eye. Sleeping in contact lenses increases your chance of getting an eye infection six to eight times.

What to do if you accidentally sleep with contact lenses in?

Attempt to remove your contact lenses as soon as you’ve discovered that you’ve fallen asleep with them in your eyes. Make sure you follow your standard hygiene practices. If you cannot remove them easily, stop! Tugging at a dehydrated lens attached to your eye can cause tearing. Instead, place several drops of sterile contact solution on your eyes or lubricating drops. Blink several times. And try again.

After successfully removing your contact lenses, pay attention to how your eyes feel. Do not wear contact lenses for at least one full day to allow your eyes to heal. Contact your eye care provider immediately if you notice any symptoms of infection or discomfort. The signs of an eye infection are blurred vision, redness, excessive watering, and discharge from the eye. If you think you have an eye infection, your eye doctor may want to test your contact lenses, so be sure to take those with you when you visit.

Always practice safe habits following the guidelines your eye care professional provided and check with them whenever you’re in doubt.

If you are guilty of sleeping or taking naps in your contact lenses, it’s time to change your eye care routine. You may want to consider taking out your contact lenses after dinner and switching to eyeglasses so you don’t forget them before bedtime. If you are a fan of naps or have an unpredictable schedule, visit your eye care provider and ask if extended-wear contact lenses are for you. You can browse all the contact lenses you sleep in at Lens.com.

Why are some contact lenses FDA-approved for overnight or extended wear while others aren’t?

The simplest reason why not all contact lenses are FDA-approved for overnight wear is that contact lens manufacturers have to apply for FDA approval. Applying for FDA approval is a lengthy process that requires submitting studies and research documents and passing clinical trials. If a manufacturer wants FDA approval, they’d have to spend considerable time and resources.

Another reason is that contact lenses designed for overnight wear are made of thinner material compared to daily wear contact lenses.

Many contact lens brands that are FDA-approved for overnight wear are made with silicone hydrogel, which is significantly more breathable than standard hydrogel. Silicone hydrogel allows for much better oxygen transmissibility, which is essential when wearing contact lenses for extended periods.

Which contact lenses can you sleep in?

You can only sleep in contact lenses that are designed for overnight wear. Popular contact lenses rated for overnight usage include:

  • Acuvue Oasys with Hydraclear Plus can be worn daily for two weeks or continuously for up to six nights and seven days, after which they must be removed, disposed of, and replaced with a new pair of lenses. These contact lenses feature Acuvue’s innovative Hydraclear Plus. Inspired by how the eye’s tear film works, this wetting agent keeps the contacts wet and smooth for all-day comfort. These contacts block more than 99 percent of UVB and 95 percent of UVA rays – some of the highest levels you’ll find on the market today.
  • AirOptix plus HydraGlyde combines two unique technologies into one lens: SmartShield Technology and HydraGlyde Moisture Matrix technology. SmartShield Technology creates an ultra-thin protective layer to help shield your lenses from deposits and provides long-lasting comfort. HydraGlyde Moisture Matrix, on the other hand, attracts and maintains surface moisture on the lens for up to 16 hours. SmartShield Technology and HydraGlyde Moisture Matrix technology make Air Optix plus HydraGlyde very comfortable.
  • Biofinity contact lenses bring a remarkable balance of comfort and breathability in a monthly disposable lens. They are FDA-approved for extended wear, meaning they can be worn continuously for up to six nights and seven days before they need to be replaced. These contacts feature CooperVision’s patented Aquaform® Technology, which locks in water so you can enjoy all-day comfort. They also have smooth, rounded edges, enhancing comfort by minimizing interaction between your contact lenses and eyelids.
  • PureVision 2 HD contact lenses are another popular brand rated for night and day wear. Featuring Bausch + Lomb’s innovative High Definition™ Optics, these contact lenses help you see enhanced contrast, sharper details, and reduced glare, even in low light conditions. They reduce halos and give a crisp, clear vision while using digital devices or in low-light conditions. They’re made of a silicone hydrogel lens material that allows plenty of oxygen to reach your eyes, which they need to stay white and healthy.

Curious to see all the contact lenses you can sleep inVisit Lens.com to learn more.

The lenses above have been approved by the FDA for use while asleep. If you already wear these contact lenses, ask your eye care provider before using contacts during sleep. Each individual’s eye health is different and your eye care provider needs to evaluate the overall health of your eye before approving overnight use.

Can you nap while wearing contact lenses?

Generally, no, you should not nap or sleep with contact lenses. This applies to all contact lens brands and types, unless specified. Falling asleep with your contact lenses could lead to infection and irritation. While modern soft contact lenses have incredible technology to ensure enough oxygen passes through the lenses in daily wear, having your eyes closed while you sleep reduces available oxygen and prevents tears from washing your eye under the contact lenses. This can potentially cause problems to your eyes through hypoxia of the eyes unless you use specific lenses designed for extended wear, as directed by your eye care professional.

Everyone faces different challenges when getting through each day, but some days are occasionally a tad more exhausting than others. Whether you are a new parent, finishing up work for a deadline, studying for an important exam, or going through health issues that keep you lethargic all day long, there’s one thing we can all agree on, and that is a nap. Studies have shown that naps boost productivity by improving alertness, performance, and mood.

Rather than avoid taking naps, consider talking to your doctor about changing your prescription to an extended-wear contact lens.

What if I fall asleep with the contact lenses for just 10 minutes?

The duration does make a difference, but it is not the only factor to consider. In general, the more time spent sleeping in contact lenses, the greater the risk that you will develop symptoms of infection or inflammation and suffer from the more severe consequences. For example, if you sometimes fall asleep during your work transit or take naps between 10 and 40 minutes long, you are likely not exposing yourself to any long-term health-related risks. You might, however, still experience blurred vision and dry eyes for a short period. If you’re asleep for an extended period of one or more hours, then your contact lenses can dry up in your eyes, which can lead to discomfort or a scratching sensation in your eyes when you open them.

The type of contact lenses you wear matters, too. Silicone hydrogel lenses allow more oxygen to the cornea, so your eyes won’t get sore. On the other hand, hydrogel lenses might cause some redness, irritation, and burning when you wake up– which could even damage your cornea. With shorter naps, these issues are less likely to occur.

The state your eyes are in before falling asleep also matters. If you have been using your contacts only for a few hours before going to bed, then there is a lower risk of your eyes getting irritated than if you have been wearing them all day. This is because contact lenses accumulate dirt and dust, such as when worn for extended periods or throughout the day. However, if you fall asleep with your contacts in the evening and stay in your eyes all night, this is more problematic.

How do you wear contact lenses safely?

Your eye health is just too important to take a chance. Consider speaking with your eye care professional about switching to contact lenses approved for extended wear when in doubt.

If you’ve accidentally slept in your contact lenses for brief periods or rarely, here are tips to help:

  • Attempt to remove your contact lenses as soon as you realize you’ve slept in them. But do not sidestep your regular hygiene process, such as washing your hands.
  • Always have a backup plan. Carry a spare set of lenses or a pair of eyeglasses. It’s also a good idea to keep contact solution or eye drops in your purse, backpack, or office.
  • If you’ve fallen asleep on an overnight trip and realize you didn’t bring your contact lenses or cleaning supplies, find a pharmacy as soon as possible so that you can remove and clean your lenses. At the very least, put in eye drops so your lens can rehydrate and reduce the pressure on your cornea, and it is imperative to remove your lens as soon as possible.
  • Never put your contact lenses in your mouth to moisten or clean them. Saliva is not sterile and will increase the risk of an eye infection.
  • Before wearing your contact lenses again, ensure they are thoroughly cleaned and inspect them for small tears or other imperfections. If you notice any irregularities, throw them away. And start with a fresh pair. It’s always a good idea to go at least one day without contact lenses if you’ve slept in them; this will give your eyes a chance to recover.
  • If you experience any symptoms of an eye infection or discomfort, seek care from your eye care professional.

Always practice safe habits and check with your eye care professional whenever you doubt.

NewsMakers

5 Tips to upgrade your sleep

Sleep contributes to better brain function, memory, concentration and lower stress. According to the National Institutes of Health, most adults need 7-9 hours of sleep every night to achieve maximum health benefits.

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Good sleep isn’t just about waking up feeling rested and ready for the day. Quality sleep, and plenty of it, is important for your overall health. While you sleep, your body naturally recharges itself, which puts you at lower risk for cardiovascular problems and chronic conditions like diabetes, as well as improving your immune system.

Sleep also contributes to better brain function, memory, concentration and lower stress. According to the National Institutes of Health, most adults need 7-9 hours of sleep every night to achieve maximum health benefits.

If you’re falling short of the recommended amount of sleep, you may be able to make some adjustments that help you reap the health benefits of better rest. Learn what you can do to improve your sleep with these tips from the experts in safer, healthier sleep at Naturepedic.

Reduce Light Exposure
Your body’s natural circadian rhythms are closely aligned with light and dark. When your body senses light, it sends signals to your brain that it’s time to be awake. Light also suppresses your body’s production of melatonin, a hormone linked to sleep. Cutting back on bright lights and avoiding devices at least an hour before bed can tell your body it’s time to wind down, and sleeping in a dark room promotes better rest.

Invest in the Right Mattress
Your mattress plays a major role in your comfort through the night, so making sure it fits your needs is an important step toward getting better rest. Take control of your comfort with a quality mattress such as Naturepedic’s EOS (Ergonomic Organic Sleep) mattress, which is handcrafted and made without polyurethane foam, formaldehyde, flame retardants or fiberglass. The breathable layers of certified organic cotton, wool and GOTS-approved latex ensure better temperature regulation while naturally contouring the body. An added feature is the ability to customize each side of the bed by opening the zippers and adjusting the layered components for the perfect comfort combination.

Find the Right Sheets
Sheets that are too stiff, scratchy or otherwise unpleasant make it nearly impossible to settle in for a good night’s rest. Higher thread counts tend to be softer, higher quality sheets. However, you may need to experiment to find which material suits you best.

Set a Comfortable Temperature
When you’re too hot or cold, your mind tends to focus on those sensations rather than allowing you to slip into a slumber. Set your thermostat at a comfortable temperature, adding fans or adjusting the layers of bedding as necessary to achieve the perfect level of cozy comfort.

Use a Sound Machine
If you’re a light sleeper, noise can wreak havoc on your rest. Many people find sound machines offer two key benefits: They provide a soothing sound, such as rain or ocean waves, that allows you to relax and ease into slumber and constant background noise, so additional sounds are less disruptive.

Find more solutions for achieving better sleep at Naturepedic.com.

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What you should know about IBD

Two common conditions are irritable bowel syndrome (IBS) and inflammatory bowel disease (IBD). They’re often confused for one another, but these are actually two different GI disorders.

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It may not be something you like to talk about, but if you have gastrointestinal (GI) problems, your symptoms may be far more common than you think. According to data from the American Gastroenterological Association, 60-70 million people living in the United States have gut health concerns.

Two common conditions are irritable bowel syndrome (IBS) and inflammatory bowel disease (IBD). They’re often confused for one another, but these are actually two different GI disorders.

IBS is a syndrome; it is defined by a group of symptoms, does not cause inflammation and rarely requires hospitalization or surgery. IBD, on the other hand, is an umbrella term used to describe disorders that cause chronic inflammation of your GI tract.

The disease is more common than you may realize; a study led by the Crohn’s & Colitis Foundation found nearly 1 in 100 people living in the U.S. have IBD. The two most common forms of IBD are Crohn’s disease and ulcerative colitis.

Understanding IBD Symptoms
Because it poses serious health risks and can cause permanent damage to your intestines, it’s important to be aware of what IBD is and recognize the symptoms. Your primary care doctor or gastroenterologist can help if you have concerns about these symptoms:

  • Intense, crampy pain that doesn’t go away in a day or two or has been present on and off for weeks or longer
  • A notable change in bowel movement frequency, whether more or less often
  • Frequent diarrhea over several weeks, or loose stools multiple times a day
  • Frequent constipation, or constipation alternating with diarrhea
  • Urgency on a regular basis or inability to hold back the bowel movement before reaching the bathroom
  • Blood with bowel movements
  • Mucus in your stool regularly or paired with pain or other symptoms
  • Always feeling as though you aren’t fully emptying your bowels

Other symptoms that may have a variety of causes but need extra attention especially if you notice them along with any of the symptoms above include pain outside of the gut, fatigue, loss of appetite and weight loss. In addition, children with IBD may have delays in growth and the onset of puberty.

Diagnosing IBD
No single test can confirm a Crohn’s or ulcerative colitis diagnosis. Your medical history and information obtained from diagnostic testing can exclude other potential causes of your symptoms, since gastrointestinal symptoms are common and can have a variety of causes.

Your first tests will likely include blood and stool laboratory tests. Further testing could include imaging studies of your gastrointestinal tract or a look inside your GI tract through an endoscope.

Identifying Treatment Options
Once an IBD diagnosis is confirmed, you can partner with your doctor to manage your disease. Treatment plans are highly personalized, as what works for one person may not for another. Medication and managing your diet and nutrition are two common treatment recommendations. In some cases, surgery can help improve your quality of life.

Clinical trials may also be an option for treating your IBD. Through clinical trials, researchers find new ways to improve treatments and quality of life. In fact, clinical trials represent the final stages of a long and careful research process to make new and improved treatment options for patients available.

However, an important part of clinical trials for IBD is patient participation. Without the enrollment of patients in clinical trials, new treatment options for IBD can be delayed or never become available.

Equally important to this process is having a diverse representation of patients that considers race, age or other categories. This helps researchers develop treatments that meet the needs of a vast IBD patient community.

If you’re interested in participating in a clinical trial, ask your doctor to help you find a trial that is right for you, and visit crohnscolitisfoundation.org to learn more about IBD and treatment options, including clinical trials.

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Unlocking the science of sleep: How rest enhances language learning

Getting eight hours of sleep every night helps the brain to store and learn a new language.

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Sleep is critical for all sorts of reasons, but a team of international scientists has discovered a new incentive for getting eight hours of sleep every night: it helps the brain to store and learn a new language.

A study led by the University of South Australia (UniSA) and published in the Journal of Neuroscience has revealed that the coordination of two electrical events in the sleeping brain significantly improves our ability to remember new words and complex grammatical rules.

In an experiment with 35 native English-speaking adults, researchers tracked the brain activity of participants learning a miniature language called Mini Pinyin that is based on Mandarin but with similar grammatical rules to English.

Half of the participants learned Mini Pinyin in the morning and then returned in the evening to have their memory tested. The other half learned Mini Pinyin in the evening and then slept in the laboratory overnight while their brain activity was recorded. Researchers tested their progress in the morning.

Those who slept performed significantly better compared to those who remained awake.

Lead researcher  Dr Zachariah Cross, who did his PhD at UniSA but is now based at Northwestern University in Chicago, says sleep-based improvements were linked to the coupling of slow oscillations and sleep spindles – brainwave patterns that synchronise during NREM sleep.

“This coupling likely reflects the transfer of learned information from the hippocampus to the cortex, enhancing long-term memory storage,” Dr Cross says.

“Post-sleep neural activity showed unique patterns of theta oscillations associated with cognitive control and memory consolidation, suggesting a strong link between sleep-induced brainwave co-ordination and learning outcomes.”

UniSA researcher Dr Scott Coussens says the study underscores the importance of sleep in learning complex linguistic rules.

“By demonstrating how specific neural processes during sleep support memory consolidation, we provide a new perspective on how sleep disruption impacts language learning,” Dr Coussens says. “Sleep is not just restful; it’s an active, transformative state for the brain.”

The findings could also potentially inform treatments for individuals with language-related impairments, including autism spectrum disorder (ASD) and aphasia, who experience greater sleep disturbances than other adults.

Research on both animals and humans shows that slow oscillations improve neural plasticity – the brain’s ability to change and adapt in response to experiences and injury.

“From this perspective, slow oscillations could be increased via methods such as transcranial magnetic stimulation to accelerate aphasia-based speech and language therapy,” Dr Cross says.

In future, the researchers plan to explore how sleep and wake dynamics influence the learning of other complex cognitive tasks.

“Understanding how the brain works during sleep has implications beyond language learning. It could revolutionize how we approach education, rehabilitation, and cognitive training.”

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