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http://hdl.handle.net/10397/68458
Title: | Method and system for retarding the progression of myopia | Authors: | Tse, YY To, CH Lam, SY |
Issue Date: | 10-Feb-2015 | Source: | US Patent 8,950,860 B2. Washington, DC: US Patent and Trademark Office, 2015. | Abstract: | A method for retarding the progression of myopia in a human eye, the method comprising: providing (41) a concentric annular multi-zone refractive lens including: at least one correcting zone of optical power for correcting (42) refractive error, and at least one defocusing zone for projecting (43) at least one non-homogenous defocused image in front of at least a part of retina to inhibit myopic eye growth, the at least one defocusing zone having at least one less negative power; wherein the correcting and defocusing zones are alternated (45) in the lens and the zones are connected (46) to each other through integrated progressive transition curves. | Rights: | Assignee: The Hong Kong Polytechnic Univeristy. |
Appears in Collections: | Patent |
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