OCULAR SIGNS OF INTRACRANIAL SACCULAR ANEURYSMS

Abstract

This paper was written with the purpose of reviewing the present state of knowledge on the ocular signs of saccular aneurysms at the base of the brain. It is divided into three parts. Part 1 illustrates the topical diagnosis from the standpoint of ocular signs. This has already been treated by Jefferson,¹whose paper, which appeared in 1937, was largely based on his own cases but also reviewed cases in the literature. Part 1 of the present paper does not contain new material but is included for its intrinsic interest. Part II contains a description of ocular signs which, so far as we are aware, have not hitherto been associated with intracranial aneurysms. The most important of these signs, abnormalities of ocular movement and pupillary changes, are caused by misdirection of regenerated third nerve fibers. An additional abnormal lid movement and pupillary phenomenon are recorded, both of which are