Contact lens

A contact lens, comprising:

• a lens body including an optical portion and an annular wearing portion that surrounds the optical portion, wherein the annular wearing portion has a layout region being C-shaped and a lower eyelid region that is arranged between two ends of the layout region, and the lens body includes:
• a rear surface having a predetermined curvature for being worn on an eye;
• and
• a front surface arranged opposite to the rear surface, wherein the front surface has a viewable surface corresponding in position to the optical portion and a free curved surface that corresponds in position to the annular wearing portion;
• an electronic component embedded in the lower eyelid region of the annular wearing portion;
• and
• a circuit structure embedded in the annular wearing portion and connected to the electronic component to establish an electrical connection therebetween;
• wherein, in a cross-section of the lens body through a central axis (L) passing through the electronic component, the viewable surface has a first curvature different from a second curvature of the free curved surface, and a thickness of the annular wearing portion gradually increases in a direction toward the lower eyelid region.