Contact lenses are a popular alternative to glasses, offering convenience, comfort, and freedom of vision without the need for frames. However, one common concern for contact lens wearers is when the lens seems to move around in the eye. If you’ve ever experienced the sensation of a contact lens shifting unexpectedly or feeling out of place, you might wonder what causes this to happen. Understanding why contacts sometimes move around in the eye can help ensure you maintain proper eye health and comfort.
1. Improper Lens Fit
The most common reason a contact lens moves around is that it does not fit the eye properly. Contact lenses come in various sizes and curvatures, tailored to fit specific eye shapes. If the lens is too loose, it will have more room to shift. Conversely, if the lens is too tight, it may restrict movement, but it could also cause discomfort or even damage to the cornea. To avoid improper fitting, it is essential to visit an eye care professional who can measure your eye’s curvature and recommend the right lenses. Regular eye exams ensure your lenses still fit correctly as your eyes change over time.
2. Dry Eyes or Insufficient Lubrication
When your eyes are dry, the contact lens may not stay in place as easily. The natural tear film on the surface of the eye provides a layer of moisture that helps the lens adhere comfortably to the cornea. If your eyes produce fewer tears or the tears evaporate too quickly, the lens may move more than usual. This sensation of movement can lead to irritation, discomfort, or even the feeling that the lens is stuck in an unusual position. Artificial tear drops can help to relieve dry eyes and restore lubrication, but consulting an eye care professional is advised if this problem persists.
3. Blinking and Eye Movements
Your eyes are constantly in motion, and blinking is a natural reflex that helps to keep the eye moist and free from debris. While blinking, the movement can shift your contact lenses slightly. For most people, this is not noticeable, as the lenses are designed to move with the eye to some extent. However, if your contacts are not well-centered or properly hydrated, excessive blinking or rapid eye movements (such as looking up and down quickly) can cause the lens to shift. If the lens slides around too much or feels uncomfortable, taking a short break from wearing them and reapplying some eye drops may restore comfort.
4. Lens Type and Material
Different types of contact lenses, including soft lenses, rigid gas permeable (RGP) lenses, and hybrid lenses, can behave differently when worn. Soft contact lenses are more flexible and conform to the shape of the eye, which makes them more prone to moving around, particularly if the fit is not ideal. On the other hand, RGP lenses tend to stay in place better because they are more rigid, but they can cause discomfort if they are not positioned correctly. Hybrid lenses combine features of both, offering the stability of rigid lenses with the comfort of soft lenses. Understanding the type of lens that suits your eye shape and lifestyle is critical to maintaining stability and comfort.
5. Foreign Particles or Debris
When foreign particles like dust, eyelashes, or makeup get trapped underneath a contact lens, they can cause it to move. A grain of sand or even a tiny piece of eyelash can create an uncomfortable sensation and disrupt the position of the lens. It is important to practice proper hygiene when handling contact lenses to avoid introducing dirt or particles to the lens surface. Additionally, if you wear makeup, it is essential to apply it with caution, ensuring that powders, creams, or other substances do not fall into your eyes.
6. Eye Infections or Inflammation
Infections or conditions such as conjunctivitis (pink eye) or keratitis (inflammation of the cornea) can affect the stability of contact lenses. When the eye becomes inflamed, it may cause changes in the shape of the cornea, leading to the lens shifting around. If you notice increased lens movement accompanied by symptoms like redness, pain, excessive tearing, or blurry vision, it is vital to remove your lenses immediately and seek medical attention. Infections can lead to severe complications if not treated promptly, and your eye care professional can provide guidance on how to proceed.
7. Improper Handling or Care
How you handle and care for your contact lenses also plays a role in how they fit and perform. For instance, wearing a lens for longer than recommended or failing to clean them properly can lead to the buildup of deposits, which may interfere with the lens’ ability to stay in place. It’s crucial to follow the recommended cleaning routine, store the lenses in a sterile solution, and replace them at the appropriate intervals to prevent discomfort and avoid lens shifting.
8. Environmental Factors
Certain environmental factors, such as wind or extreme temperatures, can impact how your contact lenses behave. Wind can dry out the surface of your eyes, making the lenses more likely to move around. Additionally, exposure to air conditioning or heating systems can dry out your eyes and reduce the stability of the lenses. When outdoors, wearing sunglasses can help shield your eyes from wind and dust, which may help keep your lenses in place.
9. Changes in Your Vision Prescription
Changes in your prescription can also contribute to lenses moving around. As your vision changes, the curvature of your cornea might also shift, affecting how well your contact lenses fit. If you haven’t had an eye exam in a while or if you’re experiencing unusual lens movement, it might be a good time to schedule an eye checkup. Adjusting your prescription can not only help with vision clarity but also ensure that your contact lenses fit more securely and comfortably.
Conclusion
Contact lenses can move around for several reasons, including improper fit, dryness, and even changes in eye health. While occasional lens movement is normal, it’s essential to address persistent discomfort or shifting with the help of an eye care professional. By choosing the right type of lens, maintaining proper care, and addressing any underlying health concerns, you can enjoy the benefits of contact lenses without the frustration of constant shifting.
