Profile: Sunrise Technologies International, Inc. focuses on the development of laser thermal Keratoplasty (LTK). Our LTK involves the strategic placement of 16 laser spots onto the peripheral cornea in which the eye is numbed with anesthetic drops and held open with an eyelid holder. The tear film is allowed to dry for 3 minutes before the laser is applied. The laser application itself takes less than 3 seconds per eye. The treatment thermally contracts the tissue, causing the central cornea to steepen.