Abstract:
Provided herein is concentric annular multi-zone lens for retarding myopia progression in a human eye. The lens comprises: a plurality of correcting zones for forming a focused image on a retina of the human eye so as to correct refractive error of the human eye, wherein the correcting zone having a similar refractive power; a plurality of defocusing zones for forming images anterior to the retina so as to generate myopic defocus; and a defocusing power increasing region, in which refractive powers of defocusing zones being increasingly relatively positive towards the periphery of the lens so as to generate larger amplitude of the myopic defocus at the periphery of the retina; wherein the plurality of correcting zones and the plurality of defocusing zones are alternated in the concentric annular multi-zone lens.
Abstract:
A pharmacologic treatment of refractive disorders, specifically myopia or hyperopia, by targeting the PPAR signaling pathway using a PPARγ agonist without any binding to PPARα. It is demonstrated that the PPARγ agonist modulates ocular growth through therapeutic intervention at the protein level of the PPAR signaling pathway. The effectiveness of the PPARγ agonist in regulating the PPAR signaling pathway and its associated proteins, as evidenced by experiments using a lens-induced myopia (LIM) animal model. More particularly, it is also demonstrated that the pharmacological reduction of myopic eye growth in terms of biometrics with dosage effect through the administration of the PPARγ agonist.
Abstract:
Methods, systems and devices for preventing and/or retarding myopia onset and/or progression are provided. Particularly, the system for preventing and/or retarding myopia onset and/or progression including an eye tracker, a display, a controller, and a dynamic blurring filter for the visual content on the display. The display is first presented to a subject, then the eye tracker is employed to detect the movement and the location of the subject's eyes and generate a tracking signal. The tracking signal is further processed by the controller to determine a gaze point of the subject's eye on the display. Based on the gaze point, a dynamic blurring filter is created and applied onto the display.
Abstract:
A method for reducing myopia progression. In particular, the method includes administering to a subject a compound represented by the following formula or a composition comprising an effective amount of the same: or a pharmaceutically accept salt thereof, in which the compound can target and inhibit catechol-O-methyltransferase, up-regulate retinal dopamine expression and change the choroidal thickness of a uvea of the subject, where an increase in choroidal thickness indicates a reduction in myopia progression.
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.