2024-06-10
Contact Lens Care 101: Tips for Healthy and Safe Wear
As an optometrist with years of experience, I’ve seen it all when it comes to contact lens wear. It’s fantastic that you’re taking the time to learn about proper care – that’s the biggest step towards years of comfortable, healthy vision. Contact lenses are a wonderful convenience, but they are medical devices, and treating them as such is crucial. This isn’t about scaring you; it's about empowering you with the knowledge to avoid complications and enjoy clear vision. Many people underestimate how important consistent, detailed care is, and that's where most problems begin.
What's the biggest risk with contact lens wear, and how can I minimize it?
The most significant risk is microbial keratitis – a corneal infection. While relatively rare with diligent care, it can be incredibly serious, potentially leading to vision loss. The cornea, lacking blood vessels, relies on tears for oxygen and to fight off infection. Contact lenses can slightly reduce oxygen flow, and improper handling introduces bacteria and other microorganisms.
Here’s how to minimize the risk:
- Hand Hygiene is Paramount: This isn’t just a quick rinse. Wash thoroughly with soap and water, then rinse with sterile saline solution. Avoid soaps with lotions or oils, as these can leave a residue on your lenses.
- Case Hygiene: This is where most people fall short. Your case isn’t just a holder; it’s a breeding ground for bacteria if not cleaned properly. Empty the case every night, rinse with sterile saline, and air dry completely. Replace your case at least every three months – even if it looks clean. Don't try to "top off" solution in the case; that just concentrates the contaminants.
- Solution Matters: Use only the solution recommended by your optometrist. Multi-purpose solutions are convenient, but some people do better with hydrogen peroxide-based systems, especially if they have sensitivities. Never use tap water, saliva, or homemade solutions – these contain microorganisms that can cause serious infections.
- Wear Schedule: Adhere to the wear schedule prescribed by your optometrist. Daily disposable lenses offer the lowest risk, as you use a fresh pair each day. If you wear extended-wear lenses, be especially vigilant about cleaning and disinfection.
I'm on a budget. Are expensive solutions and cases really worth it?
This is a common question. The cost difference between budget and premium solutions isn’t huge in the grand scheme of things, especially when considering the potential cost of treating an infection (which can easily run into the hundreds, even thousands, of dollars). Premium solutions often contain better surfactants to remove protein and lipid deposits, and some incorporate moisture-retaining agents for added comfort. However, a basic multi-purpose solution used correctly is far better than a premium solution used carelessly.
As for cases, a good quality case with a tight seal is a worthwhile investment. The few extra dollars can make a significant difference in preventing contamination. Think of it this way: you wouldn't reuse a disposable razor blade, and your contact lens case is similarly susceptible to bacterial buildup.
What about different types of lenses – daily disposables, bi-weekly, monthly? How does care change?
The care routine changes drastically depending on the lens type:
- Daily Disposables: The easiest! You simply discard the lenses at the end of the day. No cleaning, rinsing, or storing is required. This minimizes protein buildup and reduces the risk of infection.
- Bi-Weekly/Monthly Lenses: These require diligent cleaning and disinfection. After removal, clean the lenses with solution, rub gently to remove deposits (even with “no-rub” solutions, a gentle rub is recommended), rinse thoroughly with solution, and store in a clean case filled with fresh solution.
- Silicone Hydrogel Lenses: These newer materials allow more oxygen to reach the cornea, but they still require cleaning and disinfection if not daily disposable. They can be more prone to lipid deposits, so thorough cleaning is especially important.
One thing most people don't realize is that even if you wear daily disposables, you still need to practice good hand hygiene. You're still touching your eye!
I sometimes sleep in my lenses. Is that okay?
Sleeping in contact lenses significantly increases the risk of infection. While some lenses are approved for extended wear, it’s not risk-free. The cornea is more susceptible to infection when closed and deprived of oxygen during sleep. If you absolutely must sleep in your lenses (and I strongly advise against it), ensure they are specifically designed for extended wear and follow your optometrist’s instructions precisely. Even then, consider taking them out at least once a week for a thorough cleaning and to allow your eyes to breathe.
I see a lot of patients in Okotoks, Alberta, who wear lenses occasionally and think “it’s just for a few hours” is enough to bypass cleaning. That's a misconception; even short-term wear requires proper handling and storage.
How do I know if something is wrong? What symptoms should I never ignore?
Pay attention to your eyes! Here are some symptoms that warrant immediate attention:
- Redness: Persistent redness that doesn’t resolve quickly.
- Pain: Any pain, even mild discomfort.
- Blurred Vision: Sudden or persistent blurred vision.
- Light Sensitivity: Increased sensitivity to light.
- Excessive Tearing: Unusual or excessive tearing.
- Discharge: Any discharge from the eye.
If you experience any of these symptoms, remove your lenses immediately and contact your optometrist or seek medical attention. Don't try to self-diagnose or treat the problem.
How often should I get my eyes checked if I wear contacts?
At a minimum, you should have a comprehensive eye exam every year, even if your vision hasn’t changed. Contact lens wearers require more frequent check-ups to monitor the health of the cornea and ensure the lenses continue to fit properly. Your optometrist will assess the cornea for signs of irritation, dryness, or infection, and evaluate the lens fit to prevent complications. We can also discuss any changes in your lifestyle or vision needs that might require a different lens type or wearing schedule.
If you're a new contact lens wearer, you'll likely have more frequent follow-up appointments during the initial fitting period to ensure proper adaptation and address any issues. Expect check-ups at around the one-week, one-month, and three-month marks.
Remember, consistent and proper contact lens care is an investment in your long-term eye health. Don’t hesitate to ask your optometrist any questions you may have – we’re here to help you enjoy the benefits of contact lenses safely and comfortably.
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