Night-Only Contact Lenses Reshape the Eye While You Sleep There are special contact lenses worn only during sleep that gently reshape the cornea, allowing users to see clearly all day without glasses or daytime lenses. This vision-correction method is called orthokeratology (Ortho-K). Widely used by people with myopia, the technique is non-surgical and reversible—making it a popular alternative to LASIK for many patients. Important Details: • Worn only during sleep • Reshapes cornea overnight •