Wake up to crystal clear vision with Paragon CRT. Paragon CRT is a specially designed contact lens that gently and temporarily reshapes the cornea while you sleep. Through intense research and clinical testing, Paragon CRT has been proven both safe and effective for patients of all ages when worn during sleeping hours, earning this therapy FDA approval for nighttime use. The result for you is great vision 24 hours a day --- without the lenses during waking hours and while they're in at night --- with correction of myopia (nearsightedness) and myopia with astigmatism.