Contact lenses have revolutionized the way people with vision problems interact with the world. They offer a convenient and effective alternative to glasses, providing a clear, unobstructed view. However, as with any medical device, proper use and care are essential. The risks associated with contact lens overwear and poor hygiene are significant and should not be overlooked.

The Dangers of Overwearing Contact Lenses

1. Corneal Neovascularization: Overwearing contact lenses, particularly overnight or beyond their recommended usage period, can lead to insufficient oxygen supply to the cornea. This condition, known as corneal neovascularization, occurs when new blood vessels grow into the cornea in an attempt to increase oxygen supply. The presence of these vessels can lead to decreased vision and may permanently affect your eye health.

2. Corneal Ulcers: Another serious risk is the development of corneal ulcers. These open sores on the cornea can be extremely painful and, in severe cases, may lead to vision loss. Overwear increases the risk of bacterial infection, which is a common cause of these ulcers.

3. Conjunctivitis: Commonly known as pink eye, conjunctivitis can be exacerbated or caused by overwearing contact lenses. The lenses may irritate the conjunctiva, leading to inflammation and infection.

4. Dry Eye Syndrome: Prolonged contact lens wear can disrupt the natural tear film, leading to dry eye syndrome. Symptoms include irritation, redness, a gritty feeling, and blurred vision.

The Importance of Good Contact Lens Hygiene

1. Proper Cleaning and Storage: Always clean and store your lenses according to the instructions provided. Use the recommended cleaning solution, and never use water or saliva to clean your lenses. Ensure your lens case is clean and replace it regularly.

2. Regular Replacement: Follow the recommended schedule for replacing your lenses. Whether they are daily, bi-weekly, or monthly lenses, adhering to this schedule is crucial for preventing complications.

3. Hand Washing: Always wash your hands thoroughly with soap and water before handling your contact lenses. This simple step can significantly reduce the risk of introducing bacteria to your eyes.

4. Avoid Sleeping in Lenses: Unless your lenses are specifically designed for overnight wear, remove them before sleeping. Sleeping in lenses not designed for extended wear can severely reduce oxygen flow to your corneas, increasing the risk of complications.

5. Regular Eye Exams: Regular check-ups with your eye care professional are essential. These visits can catch potential issues early and ensure your lenses are still appropriate for your eyes.


While contact lenses are a fantastic tool for vision correction, they require responsibility and care. Understanding the risks of overwear and the importance of proper hygiene can help prevent serious eye problems. Always follow the guidelines provided by your eye care professional and never hesitate to seek advice if you're experiencing any discomfort or unusual symptoms. Remember, when it comes to your eyes, it's always better to be safe than sorry.

Let's cherish our vision by treating our eyes with the care they deserve.