Yes, many patients achieve 20/20 vision or significantly improved visual acuity with scleral contact lenses, particularly individuals who suffer from severe corneal irregularities such as keratoconus, post-surgical scarring, or severe dry eye syndrome. Because a scleral lens vaults completely over the irregular cornea and creates a smooth, clear fluid-filled optical surface over the eye, it neutralizes optical distortions and surface bumps much more effectively than standard soft contact lenses or eyeglasses.