Tear shaping for refractive correction

A lens for refractive tear shaping, comprising:

• a curved lens body having a peripheral edge and defining a central cavity indented into a base curve thereof, the a central cavity presenting a recess relative to the base curve;
• and
• the central cavity being structured to define the tear lens within the central cavity by interaction between a tear film of the eye and the posterior facing tear shaping surface, an anterior curvature of the tear lens being dependent on a shape of the tear shaping surface;
• the central cavity having a cavity peripheral edge having a diameter of between two millimeters and five millimeters;
• a center or centroid of the cavity being located collinear with an optical center of the curved lens body;
• and
• the central cavity having a depth between twenty five microns and one hundred microns as measured from a center of the tear shaping surface to an imaginary extension of the base curve of the curved lens body.

A method of making a lens for refractive tear shaping, comprising:

• shaping a curved lens body from a transparent material, the curved lens body having a central cavity indented into a posterior concave surface thereof, the posterior concave surface defining a base curve of the curved lens body and the central cavity presenting an opening in the base curve;
• sizing and shaping the central cavity to have a posterior facing tear shaping surface structured to form the tear lens within the central cavity;
• and
• forming the central cavity to have a cavity peripheral edge having a diameter of between two millimeters and five millimeters located on a center or centroid of the cavity that is located collinear with an optical center of the curved lens body;
• and
• forming the central cavity to have a depth between twenty five microns and one hundred microns as measured from a center of the tear shaping surface and to an imaginary extension of the base curve of the curved lens body.