Abstract: A contact lens (400) and orthokeratology method for correcting a patient's vision. The contact lens (400) has an optical zone (406) for compressing a central potion of a cornea. The contact lens (400) also includes an alignment zone (410) that has curvature less than a measured curvature of a portion of the cornea under the alignment zone (410). This curvature of the alignment zone (410) creates a large corneal bearing area (402) that provides a centering force to maintain the optical zone (406) substantially at the center of corneal visual axis. While wearing the contact lens (400), forces from the alignment zone (410) and optical zone (406) cooperate to flatten the central portion of the cornea by maintaining compression at the central portion of the cornea, resulting in visual correction.