Myopia control lens with aspheric surface to create peripheral defocus

Abstract

A myopia control lens with aspheric surface to create peripheral defocus onto varies regions of a retina is disclosed. This lens includes a central optical zone and varies of asymmetrical peripheral optical zones surrounding the central optical zone. Varies regions of asymmetric periphery optical zones create different amounts of blur surrounding a central area. The outer peripheral surface consists of different regions and different amounts of asymmetrical aspheric, so that light passing the peripheral optical zones can create different amounts of peripheral blurring areas in front of different areas of the retina; this defocusing of the images, providing more controlled amount of myopic blur to the retina, which acts as a putative cue to slow myopic eye growth.

1 . A myopia control lens with aspheric surface to create peripheral defocus, and the myopia control lens comprising:
 an outer surface;   an inner surface;   a central optical zone formed on the outer surface and the inner surface and configured to pass light to clearly focus on a central area of a retina of the eyeball; and varies of asymmetrical peripheral optical zones surrounding the central optical zone and varies regions of asymmetric periphery optical zones create different amounts of blur surrounding the central area and configured to pass light to focus on a peripheral blurring area around the central area;   wherein the outer peripheral surface consists of different regions and different amounts of asymmetrical aspheric, so that light passing the peripheral optical zones can create different amounts of peripheral blurring areas in front of different areas of the retina.   
     
     
         2 . The myopia control lens according to  claim 1 , wherein the myopia control lens is a lens of a contact lens or a lens of an eyeglass. 
     
     
         3 . The myopia control lens according to  claim 1 , wherein the inner surface is spherical. 
     
     
         4 . The myopia control lens according to  claim 1 , wherein the outer surface of the central optical zone is aspheric. 
     
     
         5 . The myopia control lens according to  claim 1 , further comprising a non-visual area surrounding the peripheral optical zone. 
     
     
         6 . The myopia control lens according to  claim 1 , wherein eccentricity of the outer surface of the central optical zone is less than eccentricity of the outer surface of the peripheral optical zone. 
     
     
         7 . The myopia control lens according to  claim 1 , wherein the lens power of the peripheral optical zone is in range of 0.00 diopter to −20.00 diopter, and the eccentricity of the outer surface of the peripheral optical zone is in range of 0 to −1.740. 
     
     
         8 . The myopia control lens according to  claim 1 , further comprising a joint section jointed between the outer surfaces of the central optical zone and the peripheral optical zone, and eccentricity of the joint section is between the eccentricity of the outer surface of the central optical zone and the eccentricity of the outer surface of the peripheral optical zone.