6 Essential Facts About Sleeping With Contact Lenses

The world of vision correction has come a long way, and for many, contact lenses are an integral part of daily life. They offer freedom and convenience, but with that comes responsibility. One of the most common questions – and sources of debate – revolves around sleeping with contacts in. Is it safe? What are the risks? And are there specific types of lenses designed for extended wear? It's a topic riddled with misconceptions, and frankly, a lot of people are unsure of the correct procedures. Understanding the nuances is crucial for maintaining optimal eye health. This article aims to demystify the practice, providing you with the essential information you need to make informed decisions about your contact lens wear.

For years, optometry professionals have cautioned against overnight wear. The primary concern stems from the increased risk of corneal hypoxia – a condition where the cornea doesn’t receive enough oxygen. Cornea, the clear front surface of your eye, relies on oxygen from the air, and to a lesser extent, from the tear film beneath the lens. When a lens is in place, especially during sleep when blinking is reduced, oxygen supply is limited. This can lead to a host of problems, ranging from mild discomfort to serious infections. However, advancements in lens technology have changed the landscape, making extended wear a possibility for some individuals, with specific types of lenses, and under the strict guidance of an eye care professional.

It’s important to remember that not all contact lenses are created equal. The material, water content, and design all play a significant role in oxygen permeability. Older generations of lenses, particularly those made of hydrogel, had lower oxygen permeability, making overnight wear significantly riskier. Modern silicone hydrogel lenses, however, boast dramatically improved oxygen transmission rates. Silicone hydrogel allows significantly more oxygen to reach the cornea, reducing the risk of hypoxia. But even with these advancements, it doesn’t eliminate the risk entirely. You should always consult with your eye doctor to determine if your lenses are suitable for extended wear.

Even with the latest lens technology, sleeping in contacts isn’t without its risks. The most significant concern remains infection. When a lens is in place overnight, it can trap bacteria and other microorganisms against the cornea. Reduced blinking means fewer tears to wash away these potential pathogens. This creates a breeding ground for infections like keratitis – an inflammation of the cornea. Keratitis can cause pain, redness, blurred vision, and in severe cases, even vision loss. It’s a serious condition that requires immediate medical attention. Furthermore, prolonged wear can also lead to corneal ulcers, inflammation, and neovascularization (the growth of new blood vessels in the cornea), which can permanently impair vision.

Beyond infection, sleeping with contacts can also cause discomfort and dryness. The lens can adhere to the cornea during sleep, leading to difficulty removing it in the morning. This can cause irritation and even minor corneal abrasions. Abrasions, scratches on the cornea, are painful and can increase the risk of infection. Dry eye symptoms can also be exacerbated by overnight wear, as the lens can absorb tears, leaving the eye feeling gritty and uncomfortable. You might experience redness, a burning sensation, and a feeling like something is stuck in your eye. These symptoms should never be ignored.

Yes, there are. These are typically marketed as “extended wear” lenses. However, it’s crucial to understand that “extended wear” doesn’t mean “continuous wear.” Even these lenses are designed to be removed periodically for cleaning and disinfection. They are made from highly oxygen-permeable silicone hydrogel materials and are often designed with features to promote tear exchange and reduce protein buildup. Protein buildup can contribute to discomfort and infection. Brands like Air Optix Night & Day Aqua and Acuvue Oasys Brand Contact Lenses are examples of lenses approved for extended wear, but approval doesn’t guarantee suitability for everyone.

The FDA has specific guidelines for extended wear lenses. They can be worn for up to six nights and seven days continuously, but regular eye exams are essential to monitor corneal health. Your eye doctor will assess your oxygen levels, tear production, and overall eye health to determine if extended wear is appropriate for you. They will also provide detailed instructions on proper lens care and hygiene. Remember, even with extended wear lenses, it’s important to listen to your eyes. If you experience any discomfort, redness, or blurred vision, remove the lenses immediately and consult your eye doctor.

Regardless of whether you choose to sleep with your contacts or not, proper hygiene is paramount. Always wash your hands thoroughly with soap and water before handling your lenses. Use a fresh, sterile lens case and solution every time you store your lenses. Never reuse solution, and never top off existing solution with new solution. Solution, the cleaning and disinfecting agent, is crucial for removing debris and killing bacteria. Replace your lens case regularly – ideally every month – to prevent bacterial contamination. And never, ever use tap water to rinse or store your lenses. Tap water contains microorganisms that can cause serious eye infections.

Furthermore, avoid wearing your contacts in situations where they might be exposed to water, such as swimming or showering. Water can harbor harmful bacteria and can cause lenses to swell and become uncomfortable. If you do accidentally get water in your eyes while wearing contacts, remove and disinfect them immediately. You should also avoid wearing your contacts when you’re sick, especially if you have a cold or the flu. Your immune system is compromised when you’re ill, making you more susceptible to infection. Remember, consistent and diligent hygiene practices are the best defense against eye infections.

If you experience any discomfort, redness, blurred vision, pain, or sensitivity to light while wearing contacts, remove the lenses immediately. Do not attempt to self-treat the problem. Contact your eye doctor as soon as possible. Early diagnosis and treatment are crucial for preventing serious complications. Complications, such as corneal ulcers or severe infections, can lead to permanent vision loss. Your eye doctor will examine your eyes, determine the cause of the problem, and prescribe appropriate treatment, which may include antibiotic eye drops or oral medication.

Don’t hesitate to seek medical attention. Ignoring symptoms can worsen the condition and increase the risk of long-term damage. It’s always better to be safe than sorry when it comes to your eye health. You should also inform your eye doctor about any changes in your health, such as allergies or medications, as these can affect your contact lens wear. Regular eye exams are essential for monitoring your corneal health and ensuring that your lenses are still a good fit.

There are a lot of misconceptions surrounding sleeping in contacts. One common myth is that if you can sleep in one type of lens, you can sleep in all of them. This is absolutely false. As we’ve discussed, lens material and design play a crucial role in oxygen permeability. Another myth is that if your eyes don’t feel uncomfortable, everything is okay. Discomfort is a sign that something is wrong, but sometimes, damage can occur without noticeable symptoms. That’s why regular eye exams are so important. Finally, some people believe that using extra lubricating drops can compensate for sleeping in contacts. While lubricating drops can provide temporary relief, they don’t address the underlying risk of hypoxia and infection.

It’s vital to rely on evidence-based information from your eye care professional, not anecdotal evidence or online forums. Your eye doctor can provide personalized advice based on your individual needs and eye health. They can also help you choose the right type of lenses and develop a proper lens care routine. Don’t be afraid to ask questions and express your concerns. Your eye health is too important to leave to chance.

The field of contact lens technology is constantly evolving. Researchers are developing new materials and designs that offer even greater oxygen permeability, improved comfort, and reduced risk of infection. Researchers are exploring lenses that incorporate antimicrobial agents to prevent bacterial growth and lenses that release medication directly to the eye. There’s also ongoing research into “smart” lenses that can monitor glucose levels in tears for people with diabetes and lenses that can correct vision without the need for glasses or contacts. The future of contact lenses is bright, and we can expect to see even more innovative solutions in the years to come.

However, even with these advancements, the fundamental principles of proper hygiene and responsible lens wear will remain essential. No matter how advanced the technology becomes, it’s crucial to prioritize your eye health and follow the guidance of your eye care professional. The goal is to enjoy the benefits of contact lenses while minimizing the risks.

Ultimately, the decision of whether or not to sleep with your contacts is a personal one. However, it’s a decision that should be made in consultation with your eye care professional. They can assess your individual risk factors and determine if extended wear is appropriate for you. If you do choose to sleep with your contacts, it’s essential to follow their instructions carefully and practice impeccable hygiene. Hygiene is the cornerstone of safe contact lens wear. Remember, your vision is precious, and taking care of your eyes is an investment in your future.

Sleeping with contact lenses is a complex issue with potential benefits and risks. While advancements in lens technology have made extended wear a possibility for some, it’s not a one-size-fits-all solution. Prioritizing your eye health, practicing diligent hygiene, and following the guidance of your eye doctor are crucial for ensuring safe and comfortable contact lens wear. Don't hesitate to ask questions, express your concerns, and seek medical attention if you experience any problems. Your vision deserves the best possible care.