公开(公告)号：US20240335107A1

公开(公告)日：2024-10-10

申请号：US18291664

申请日：2022-07-02

Applicant: CTAK LLC

Inventor： Peter Hersh ,  Steven Greenstein ,  John Gelles

IPC: A61B3/107 ,  A61F9/008

CPC classification number: A61B3/107 ,  A61F9/00804 ,  A61F2009/00872 ,  A61F2009/00882 ,  A61F2009/00893

Abstract: Devices and methods for the amelioration of ectatic corneal disorders using corneal augmentations derived from corneal tissue are disclosed. The shape of the augmentation is determined using data obtained from mapping of a patient's cornea based on computerized corneal topography and tomography. Factors considered include the maximum keratometry and specific iso-deviation contours. In one embodiment, an augmentation is a corneal inlay, intended for insertion into an intrastromal pocket. In a further embodiment, the augmentation is a corneal onlay, intended to be positioned over a region of the cornea from which the epithelial layer has been removed. The corneal onlay is held in place until the epithelial layer regrows over the augmentation. In a further embodiment, the inlay or onlay augmentation is followed by a post-augmentation, further reshaping of the corneal augmentation. In one embodiment, this further reshaping is photorefractive keratectomy (PRK) surgery.