lithium (intraocular lens) for insertion into the human eye； and additional lip for insertion into the human eye beyond the natural eye lens or beyond a replacement lip
Intraocular lens for insertion into the human eye includes an optic having a posterior surface for facing towards the posterior chamber of the human eye； an anterior surface for facing away from the posterior chamber of the human eye, the anterior surface being at least substantially convex； a main lens formed by corresponding surface sections of the anterior and posterior surfaces, the main lens having an optical axis and a base optical power； and an additional surface section at a distance from the optical axis, the additional surface section including at least one additional section part providing for an optical power different from the base optical power. The posterior surface is substantially flat or at least substantially concave, and includes a substantially flat or at least substantially concave main posterior surface section, the main lens being formed by the anterior surface and the main posterior surface section.
