Corneal and epithelial remodelling

摘要

598028 An orthokeratology contact lens is disclosed which assists in preventing the progression of myopia. The posterior surface of the lens is adapted to be placed in contact with the cornea of a wearer's eye and worn over a period of time to reshape the cornea. The posterior surface of the lens comprises a central treatment zone adapted to overlie a central optical region of the eye, an annular peripheral treatment zone which is contiguous with the central treatment zone and which is adapted to overlie a peripheral optical region of the eye and an annular centration zone which is contiguous with and surrounds the peripheral treatment zone. The centration zone is shaped to approximate the configuration of the eye in a region of the eye radially outwards of the peripheral optical region. The central treatment zone is adapted to shape the central optical region of the cornea to result in axial light entering the eye being focused on or about the retina of the wearer. The peripheral treatment zone is adapted to shape the peripheral optical region of the eye into a configuration which will result in peripheral light entering the eye being focused at a location anterior of the retina of the wearer.