Radial Furrows at Pupillary Zone & Border of the Collarette - Lx - (shan) - a

Could you identify what the genetic impacts carried by radial furrows seated at different iris zones ? What type of MI models can apply under these conditions ? 
a) Radial Furrow penetrated inside border of the collarette 
b)Radial Furrows at the pupillary zone or internal collarette border 
c) Radial Furrow located outside border of the collarette or ciliary zone