the drawings of fig1 a and fig2 a look somehow similar where the front face 2 is concavely curved while the rear face 3 is convexly curved outwardly the inverted contact lens 1 has a shape similar to that of a soup bowl fig1 b shows a plan view of the non inverted soft contact lens 1 of fig1 a illuminated with collimated light having parallel light rays the fine structure of the coloring pigments becomes visible as is schematically shown in fig1 b the contact lens 1 shows a granular fine structure 4 of the pigments the granular structure 4 is more or less homogeneously distributed in contact lens 1 fig2 b shows a plan view of the inverted soft contact lens as is schematically shown in fig2 b the fine structure of the pigments exhibits radially oriented linear structures 5 fig3 shows a view of a section of an orthographic image 10 of the non inverted soft contact lens of fig1 b the section is indicated by a rectangle s in the orthographic image 10 and shown in proper magnification on the right hand side of fig3 the granular structure 4 of the coloring pigments and its homogeneous distribution across the depicted section s of the non inverted soft contact lens 1 are clearly visible fig4 shows a view of a section of an orthographic image 10 of the inverted soft contact lens of fig2 b the section.