While the research on fermented soy and thyroid function is mixed, soy protein isolate should be avoided. This means no junky soy foods like soy cheese, soy yogurt, energy bars with soy protein isolate, soy burgers and soy-based meats..
Optic nerve. The optic nerve is located in the back of the eye. It is also called the second cranial nerve or cranial nerve II. It is the second of several pairs of cranial nerves. The job of the optic nerve is to transfer visual information from the retina to the vision centers of the brain via electrical impulses. The optic nerve is made of ganglionic cells or nerve cells. It consists of over one million nerve fibers. Our blind spot is caused by the absence of specialized photosensitive (light-sensitive) cells, or photoreceptors, in the part of the retina where the optic nerve exits the eye.
Common examples are the bipolar cell of the retina, the ganglia of the vestibulocochlear nerve, and the extensive use of bipolar cells to transmit efferent (motor) signals to control muscles. The four types of retinal neurons are bipolar cells, ganglion cells, horizontal cells, and amacrine cells.