What Happens If You Wear Contacts Too Long? The Risks of Extended Wear
Wearing contact lenses for longer than recommended can lead to a range of uncomfortable and potentially serious eye problems. The consequences vary depending on the type of contact lenses (daily disposables, extended wear, etc.), the length of overwear, and individual susceptibility. Let's explore the potential risks in detail.
What are the risks of wearing contacts longer than prescribed?
This is a key question, and the answer isn't a simple one. Prolonged contact lens wear increases your risk of several eye infections and conditions. These range from mild discomfort to severe vision impairment, and in extreme cases, even vision loss. The specific risks include:
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Microbial Keratitis: This is a serious corneal infection that can cause significant pain, blurry vision, and even corneal scarring or ulceration. Bacteria, fungi, and other microorganisms can thrive in the moist environment of the contact lens, especially if proper hygiene isn't maintained. Extended wear significantly increases the risk of this infection.
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Giant Papillary Conjunctivitis (GPC): This is an inflammatory condition of the conjunctiva (the membrane lining the inside of the eyelids and covering the white part of the eye). It's often caused by a reaction to the contact lens material or a build-up of deposits on the lens. Symptoms include itching, redness, and a gritty feeling in the eyes.
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Corneal Ulcers: These are open sores on the cornea that can be incredibly painful and lead to serious vision problems if left untreated. Prolonged contact lens wear weakens the cornea's defenses, making it more susceptible to ulceration.
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Contact Lens-Induced Dry Eye: Even with proper care, contact lenses can sometimes lead to dry eye, and wearing them for excessive periods exacerbates the problem. The lenses interfere with the natural tear film, leading to discomfort, burning, and blurry vision.
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Hypoxia (Lack of Oxygen to the Cornea): The cornea needs oxygen to stay healthy, and contact lenses can limit the amount of oxygen that reaches it. Extended wear deprives the cornea of vital oxygen, potentially leading to damage over time.
How long is too long to wear contacts?
The answer depends entirely on your prescribed wearing schedule. Always follow your eye doctor's instructions. Daily disposable lenses should be discarded after each use. Extended-wear lenses have specific guidelines for how long they can be worn continuously, and exceeding this is risky. Even with extended-wear lenses, you shouldn't wear them for much longer than recommended, even if you feel comfortable.
What should I do if I accidentally wear my contacts too long?
If you suspect you've worn your contacts for too long, remove them immediately. Rinse them thoroughly with a sterile solution (if reusable) and properly store them. Observe your eyes closely for any signs of discomfort, redness, pain, or blurry vision. If you experience any of these symptoms, contact your eye doctor immediately. Early intervention is crucial in treating eye infections and preventing serious complications.
Can I sleep in my contacts even if they are designed for extended wear?
While some contact lenses are marketed for extended wear, sleeping in them still increases the risk of infections and complications. Even extended-wear lenses should be removed regularly for cleaning and to allow the eyes to breathe. Always follow your optometrist's instructions regarding sleep and contact lens wear.
What are the signs I should stop wearing my contacts and see an eye doctor?
Don't hesitate to contact your eye doctor if you experience any of the following:
- Increased redness or irritation
- Excessive tearing
- Blurred or decreased vision
- Pain or discomfort
- Sensitivity to light
- Pus or discharge from the eye
Your eye health is paramount. Never compromise on proper contact lens hygiene and wearing schedules. Regular check-ups with your eye doctor are crucial to maintain healthy eyes and prevent complications associated with contact lens use.
