Modern & Advanced Iridology Practice - IPB Analysis

Can you try to identify the above IPB morphologies ? 3 different unique structure are located at the frontal section of inner pupillary border...they are an importance of genetic and epigenetic signs for Modern  Iridologist to determine and evaluate...

a) Elephant signs of IPB, note that two elephant heads opposite facing to each other.
b) U-shaped IPB at frontal section of the inner pupillary border.
c) Squared IPB signs
Please refer to John Andrews & Dr. Daniele Lo Rito textbooks for comprehensive explanation of the above morphologies !