2024-07-21
Tips for Choosing and Using Contact Lenses Safely
As an optometrist with years of experience, I've seen a lot of changes in contact lens technology – and a lot of avoidable problems. People often approach contact lenses thinking they're a simple cosmetic choice, but they're medical devices that require careful consideration and consistent care. This isn’t about selling you lenses; it’s about ensuring your eye health for years to come. This post will cover everything from initial selection to daily habits, going beyond the basics to give you a truly informed understanding.
What type of contact lens is right for me?
This is the biggest question, and the answer is deeply personal. It depends on your vision correction needs, lifestyle, and even your tear film. Here’s a breakdown of the main types:
- Daily Disposables: These are the gold standard for hygiene. You wear them once and discard them. They’re ideal for almost everyone, especially those new to lenses, allergy sufferers, or those who only need vision correction part-time (sports, evenings). They minimize protein buildup and reduce the risk of infection. Expect to pay roughly $40-$70 per month for a consistent supply.
- Two-Weekly Disposables: A more economical option. Requires diligent cleaning and storage. Suitable for those with stable prescriptions and who are committed to proper hygiene. Cost is typically $30-$50 per month.
- Monthly Disposables: These offer the lowest per-day cost but demand the highest level of care. Not recommended for first-time wearers or those prone to dryness. Approximately $20-$40 per month.
- Rigid Gas Permeable (RGP) Lenses: These are less common now but offer superior oxygen permeability, making them excellent for individuals with astigmatism, keratoconus, or those who struggle with soft lenses. They require an adaptation period and can feel less comfortable initially, but many patients find the vision clarity unparalleled. The initial investment is higher ($200-$400 per pair) but they typically last 1-2 years with proper care.
- Multifocal Lenses: For those with presbyopia (age-related difficulty focusing up close). Available in soft and RGP varieties. Finding the right multifocal design can take some trial and error; don’t be discouraged if the first fit isn't perfect.
What most people don’t realize is that lens material also matters. Hydrogel lenses retain more water, which can be comfortable initially but also attracts more deposits. Silicone hydrogel lenses allow more oxygen to reach the cornea, promoting healthier eyes – this is particularly important with extended wear.
How often can I wear my contact lenses?
This isn't a one-size-fits-all answer. Daily disposables are designed for daily wear and discard. Other lens types can be worn for longer periods, but it’s crucial to follow your optometrist’s instructions. Extended wear (sleeping in lenses) is increasingly discouraged due to the significantly higher risk of infection. While some lenses are approved for overnight wear, it should only be considered under careful monitoring, and even then, it’s not suitable for everyone. I generally advise patients in Okotoks, Alberta, and surrounding areas to prioritize giving their eyes a break, especially during dry winter months.
A realistic timeline: Even with approved extended wear lenses, aim to remove them for cleaning and inspection every few days. A good rule of thumb is to follow the “8-hour rule”: don’t wear lenses for more than 8 hours straight without removing and letting your eyes breathe.
What about contact lens solutions? Are they all the same?
Absolutely not! Solutions fall into a few categories:
- Multipurpose Solutions: The most common type. They clean, disinfect, rinse, and store lenses. Look for solutions containing hyaluronate for added lubrication.
- Hydrogen Peroxide Solutions: These require a longer disinfection process and a separate neutralizing case. They’re very effective at killing microbes but can cause stinging if not properly neutralized.
- Saline Solutions: Used for rinsing lenses, not disinfecting.
A crucial point: Never use tap water to rinse or store lenses. Tap water contains microorganisms that can cause serious eye infections. Also, don’t mix solutions. Using an expired solution is another common mistake – always check the expiration date.
I’m on a budget – are cheaper lenses okay?
Budget is a valid concern, but compromising on quality can be risky. Cheaper lenses often use older materials with lower oxygen permeability and may not fit as well. A poorly fitting lens can cause discomfort, dryness, and even corneal abrasions. While two-weekly or monthly lenses can save money, remember to factor in the cost of solutions and cases. Daily disposables, while seemingly more expensive upfront, often reduce the need for expensive doctor visits to treat complications from improper lens care.
A cost-saving tip: Consider purchasing a year's supply of lenses. Many optometrists offer discounts for annual purchases, and it can simplify your budgeting.
What are the warning signs I should look out for?
Don't ignore these! Seek immediate attention if you experience any of the following:
- Redness that doesn’t improve quickly
- Pain, even mild
- Blurred vision that persists after removing your lenses
- Excessive tearing or discharge
- Sensitivity to light
- A feeling like something is in your eye
These could be signs of corneal infection, ulcer, or other serious condition. Early detection is key to preventing permanent vision loss. Never self-treat eye problems.
How does the environment affect my contact lens wear?
The dry climate in and around Okotoks can significantly impact contact lens comfort. Low humidity draws moisture from your lenses and your eyes, leading to dryness and irritation. Consider using lubricating eye drops specifically designed for contact lens wearers. Avoid wearing lenses in dusty or smoky environments when possible. Also, prolonged exposure to air conditioning or heating can exacerbate dryness.
A practical tip: Carry a small bottle of lubricating eye drops with you, especially during the winter months.
What about makeup and contact lenses?
Makeup and contacts can coexist, but you need to be careful. Always put your lenses in before applying makeup. Use oil-free makeup and avoid getting any product on your lenses. Remove makeup thoroughly after removing your lenses. Avoid mascara with fibers that can flake off and irritate your eyes. Replace your makeup regularly to prevent bacterial contamination.
Choosing and using contact lenses safely requires knowledge, diligence, and regular professional care. Don’t hesitate to ask questions, and always follow your optometrist's recommendations.
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