The main cause of the blindsight disorder

You noted that, “The main cause of the blindsight disorder is the damage of the brain and specifically the ‘occipital lobe’  or the primary cortex (V1) which leads to the loss of perception in the respective areas of the visual field (Overgaard, 2012)”.

It has also been said that it is uncertain which neural circuits are actually associated with blind sight (Cowey, 2010).  How do you respond to that statement?  Based on your research do you hold fast to what you posted, or is there support for Cowey? 

Discuss in detail using scholarly research to support your discussion.