EPISCLERAL GANGLION CELLS

Abstract
The ciliary ganglion was first described by Krause in 1852. While working to find out the function of this ganglion, Peschel1 in 1893 ended with an exhaustive treatise on the orbital nervous system of the rabbit. In this work he discovered and minutely described eighty-five ganglion cells, forty-four of which were situated between the globe and the ciliary ganglion. He later also found many isolated ganglion cells in orbits of human beings. In 1907 Axenfeld2 concluded that ganglion cells are frequently found in human beings, behind the sclera as well as in the scleral canal, and not rarely as many as thirty cells are grouped together, forming a small episcleral ganglion. While working on a study of hypertensive neuroretinitis, such a ganglion was found and studied in serial section. It lay to the temporal side of the optic nerve just behind the sclera, was composed of five cells