Yes, orthoK lenses are designed such that you wear them overnight where they gently reshape the front curvature of the eye to temporarily reduce the amount of myopia (nearsightedness) during the day so you don’t need to wear glasses throughout the day. However it can take up to 1-3 weeks to get the eye to get to the shape it needs to be in order to see clearly throughout the whole day without any glasses or contact lens correction. However, it's vital that you have a backup pair of glasses in the event that you develop a contact lens related infection that forces you to take a break from your contacts.