Myopia causes vision to be blurred at medium and far distances. Clear vision is vital, not only for healthy vision, but also for physical development and performance. Myopia occurs when the eye is too long. This results in light being focussed in front of the retina. For some people, contact lenses and laser eye surgery can induce irritation and dry eyes. Glasses, on the other hand, may be inconvenient for many sports activities. Orthokeratology or ortho-k, involves wearing a specially designed, FDA approved rigid gas permeable contact lens while you sleep. The lens painlessly and gently reshapes the front of your eyes overnight. So, when you wake-up, your vision is clear without any contact lenses or glasses! After approximately 2-4 weeks of overnight wear, you'll be able to see clearly for the whole day and well into the night. Ortho-k is completely safe and reversible. If you stop wearing the overnight lens, your myopia will return. Free yourself from glasses and regular contact lenses with Ortho-k.