It infers that an incident was unintentional and out of ones control.
The primary visual cortex is what sends information to the secondary visuals, which are important for color, motion, and depth perception. If the primary visual is damaged, then it can cause problems for the secondary visuals, which are important for the three reasons listed ^.
Try national eating disorders association.com
The process is known as Metastasis
Yes it does help with Radiation exposure