Iris-muscle-eyes-superior ( I )

Lauscha crystal glass eyes, iris rim eyes with traditional spoke-shaped iris drawing Ø▪10─28mm

 

Iris diameter 50% - 55% of the eye diameter. 
For example:
Eye diameter 20mm->Iris diameter 10mm-11mm.

Other iris diameters of this eye variety:

1 to 13 (from a total of 13)