Considering that SRA is proven to involve electroshock 100% of the time, maybe those who are MK programmed are identified by their eyes. Maybe what we're seeing isn't Coloboma, but Traumatic Iritis brought on by MK Ultra electroshock sessions.
Traumatic iritis is usually caused by blunt eye injury, but can result form any other type of injury, like firecrackers, pellet gun projectile, electric shock from taser, http://eyewiki.aao.org/Traumatic_iritis
It says that it does clear up, but considering how they continually shock the individual for programming purposes, what if the iris just stays that way? Most SRA survivors have spoken out about how they were tortured in a chair designed for electroshock sessions. Wendy Hoffman speaks of this, too, and says that when the chair wasn't available, her handlers used a taser. Let's not forget that JonBenét Ramsey was found to have what is believed to be taser marks during her autopsy.
(This is related to PG because of what we're seeing with McCann, Soros, and others who have odd eyes that have been suspected to have Coloboma)